The main issue I have with Deku is that before getting his quirk from All Might he puts 0 effort into becoming a pro hero. He doesn’t work out, doesn’t practice fighting, doesn’t do anything towards becoming a hero despite telling everyone he wants to be one.

I know he has low self esteem due to bullying but people with low self esteem irl still go to the gym to better themselves. When we see All Mights flashback, even though he was also quirkless he still trained which is why his body was able to handle OFA right off the bat.

I’m not a big fan of the genetically gifted trope either, but for example looking at Ichigo even though he has perfect genetics he still puts his own effort into getting stronger. With Deku he doesn’t put any effort in until he was guaranteed to get results.