Trump is (ironically) like Sanders, but for dumb and uneducated people.
Like Sanders, he is anti-establishment, but Trump is talking to THOSE folks who don't think, folks you talk to with emotions such as fear, "patriotism" etc.
This is why "smart intellectuals" dislike Trump, because Trump's strategy to manipulate using emotions doesn't work on them. Smart folks think, they're not limited by (and live by) their emotions, usually.
Just one example, not that it shouldn't surprise, yesterday Trump said on fb "I will make our Military so big, powerful and strong that no one will mess with us".
Stuff like this resonates with "proud Americans", but fails if you say this to someone who *already knows* that the US military is actually already the biggest, as big as the next eight nations COMBINED (including China).
(Just to ride on this because it's just...too absurd...WHO is gonna mess with the US? Terrorists? Communists? Let's say he would up the military budget even more and indeed "make the US military bigger and more powerful" than it already is, how would that prevent the US from conflict...or..the classic vision of, say, a nuclear war? Would "a bigger and more powerful military" prevent nuclear missiles from entering the US?)
Etc....pretty much anything he spouts you can dissect and all that's left is non-working emotional-driven nonsense, most he says is at the level of a 5th grader.
Also..notice how recently he keeps pushing his slogan "....make America SAFE and great again". You know, it's important to get it into people's heads that America allegedly "is not safe".
(This is in particular funny since extremism, with only a handful exceptions, is indeed no topic in the US which affects normal folks. So why exactly needs America be made "safe again"? From what threat? The 10,000 potential refugees who sure as hell won't ever set foot on US soil anyway? Immigrants? Terrorists? ISIS? "Rapists coming in from Mexico?" Why is America supposedly not safe?)
Clever and subtle (or not so subtle, depending) fear-mongering at its best. And this is why many people dislike Trump. Because they see through his (cheap) manipulations.