Do you have a breakdown of what adjuncts do on the side? Because I know many who had professional work outside of the class or they had other classes they taught elsewhere. I can imagine too that those with less marketable subject degrees are the biggest whiners because they think the low-paid jobs they could potentially get are beneath them.
Breakdown? No but if you're working 10am-11am M-W-F then your ability to find 30+ hours a week employment elsewhere (for benefits) is extremely limited.
You must be assuming here. Here's two different colleges in two different states. Btw, I would find that ridiculous if that was the case for a 15-16 week semester system! (I'm already familiar with some stupidity such as CA cc's requiring a full extra credit of lab for equivalent science courses). If I had it my way, I would mandate a quarter system.
Assuming what? Hours spent in class per credit hour? Its a standard definition generally: The Carnegie unit. Some may round down a few minutes. Others offset classes by 15min and run the full hour while still others 'encourage' professors to end a few minutes early (which doesn't seem to work all that well and results in a culture where everyone is 5-10 min late).
Also - there is very little assuming here with any of this. The company I work for is contracted by colleges and universities all over the country for work (including some of the biggest and most well known)
I can sympathize somewhat if we make a comparison with the grossly overpaid and completely unnecessary layer of administrative bureaucracy colleges generally have
It's usually not all that unnecessary sadly. Higher ed is, perhaps, the most regulated industry in the US so bureaucracy is heaped on them. You've got the obvious FERPA data but most offer some sort of health or care clinic so HIPPA enters the mix. They take payments so thats PCI. Many give out loans so thats GLBA (intended for the financial sector but, due to language, applies to higher ed as well). Can't forget your ITAR export controlled requirements and Controlled Unclassified. Of course there are your education specific ones as well like Title IX (whose interpretation keeps shifting). And of you've got state and federal laws which can conflict. For example, as federal contractors there are certain diversity hiring requirements but several states have anti-affirmative action laws so schools have to spend a lot of extra time, effort and record keeping to toe a made up gray area between them (And there
are audits). And, of course, you have to deal with varying HR laws across states and countries for your faculty, staff and students.
Let's also take software licensing. Software companies might license for faculty but not staff. Or for lecture but not research. Or education but not commercial work. Or require they be on university owned devices. Or require they be full time employees. Or only for a single address so institutions with more than one building (which is most of them) have to work around that. Or won't give device licenses for student labs. Or licenses are valid for education but not government work (which is conflicting because public universities are both). And conforming to the various acronyms in the above paragraph needs a small army of legal, procurement, IT security and researcher work to try and get a software company that works for the need to comply with state and federal regulations. But often you get software that can work with FERPA but not HIPPA or CUI but not GLBA so your admin or faculty who deal with a cross section of data types need to know or need help to know what can be used with which data, where and when.
There's no reason why anyone with only 6-12 hrs a week can't find something else to complement it.
They might find something but will it be full time and provide benefits? That is much harder. And probably doesn't pay well
From what I've seen, the load is typically barely any higher. Most online classes only have one 3-4-page paper to grade at most, which most instructors will either just assign a grade or make a brief one or two sentence statement about it. General discussion is graded so leniently it's incredibly easy to make a pass on them. Everything else is probably computed or done through Cengage, etc.. Online college instructor is one of the best jobs I'd say. Very little time or knowledge is required.
As someone who has implemented online classes this is not true. Well, not true for the institutions that seem to care about the quality of education anyway. The awareness and familiarity with platforms is not there yet so seemingly every class starts with some technical problem from a students mic, speakers, browser (or less than tech savvy instructor). Higher level universities are keenly aware of impressions that online is easier and also aware of the negative impacts to the way certain students learn so they put more time and effort into online classes to ensure they are just as hard if not moreso. And, in an ironic sort of way, there is more effort put into them to address learning style differences while traditional lecture methods are often left as is (despite having similar negative consequences to different learning styles. But thats the way it was always done so its fine...).
You've also got additional coordination for subjects that require or should have field work. Take Social Workers - they need field work to get their degree. So instead of one person working in a confined geographical areas with contacts they have known for a long time for placement - they could have students anywhere in the US so thats additional time spent finding placement with organizations you have had no previous contact with. Sometimes thats on the instructor for the class. Sometimes thats an expanded admin group. But usually a mix
Everything I've seen and from personal experience indicates teachers are just a small fraction of why students do well in courses. Just an FYI, there is little you can really do in regards to "involvement and engagement" with students as a group (as opposed to one-on-one) effectively.
That is not even remotely close to correct. There is a reason why student:teacher ratio is a large indicator of success. And I gave you two areas that serve as examples that your second statement is likewise false.