This seems like a pretty huge generalization. Have any of you fellows complaining ever taken the time to ask the teacher how their weekend was? Or talk about something that's troubling you with them? Honestly, this year I've had some kind of silly teachers, but I'm not going to pretend for a damn second that I could do their job better than they could.
A lot of the older teachers are actually pretty nice, especially in high school. For instance, my ITE teacher once stayed at school for 2 hours after hometime, just to help one of my friends and I with an assignment. When you get these teachers who will read your assignment drafts in their own time, even if they don't even teach your class, you can't help but question the fact that all teachers are terrible people who designate their lives to make your miserable.