I get where people who don't like All Might are coming from, the standards he set are harmful, he's reckless and bumbling and absolutely does not know how to be a teacher. But...
I think by hating him you're ignoring all of the very good narrative themes that make him this way. The whole point is that one person can't be everything. The world doesn't need a symbol of peace, it needs a system of care.
Blaming the one person who was trying the hardest for the fact that everyone else got lazy and the government was evil is just not fair. By that logic you will inherently end up hating the main characters too. You'll end up hating all the heroes, for trying but not succeeding. If your reaction to people who mean well failing because of larger issues is hatred instead of a desire to see the larger issues fixed then you might just start to... Sound exactly like the villains.
That's literally the point. That's what we saw in the latest season. Deku couldn't do everything alone. Neither could All Might.
The problem is the fact that, when people saw a traumatised and bloodied kid walking down the street alone, no one did anything to help.
Not the fact that All Might just happened to not be there.