I don't agree with cap, because all she did was go off when she read how you "hate" the game, but I do think you're being a little melodramatic. You're entitled to your opinion, but you seem a little confused about how the difficulties have changed, and the loot. They've been completely rebalanced, and you're insisting you shouldn't have to make any adjustments with a sub-60 character you used to play. There is no equivalent to the old "normal, NM, hell" difficulties...that concept no longer exists. It's now just monsters scaled to your level + (renamed, rebalanced) monster power to provide more challenge and rewards. If you dropped down to normal difficulty for a while, you'd be back up to hard/expert/master in no time.
I started a HC demon hunter after the patch to get a feel for how things are for fresh characters. For the first 30 levels or so, normal was pretty easy and I found pretty good drops, but hard+ provided a decent challenge due to the increased mob HP/DMG. Somewhere in the 40s, my DPS shot up so that expert/master seemed like a better challenge, except I came dangerously close to dying a couple times against elites, so I turned it back down (being on hardcore). Regardless, the drops I found on normal after small number of hours were perfectly viable for letting me progress to harder difficulties without any issue.
For the record, I hate oblivion and it's scaled mobs as well. I don't feel that way about this D3 patch though because gear increases your strength waaaaaaay above a default level X character. Normal mobs eventually feel like puny ants, but not until you've collected some good gear...go figure.