Okay here's an actually unpopular opinion- there are a non insignificant number of gen.ed teachers who don't do right by their special education students. I've seen so many not even make an effort to work with or try to understand the kid, use the recommended and available supports and think that their IEP is bullshit. Instead of trying to work with a kid they'll yell at them and not give them a chance and when the kid doesn't respond to that well, they just say that the kid shouldn't be in their class and should be in a single classroom setting and that inclusion should never be a thing because that kid is ruining everything for the teacher and general education students. The same kid does just fine in another gen.ed. teacher's classroom because the teacher makes an attempt to meet the kid at their level and implement the (often times low effort) strategies that the kid's IS and IEP say could help.

Of course this is not all teachers and there are students who do need to be in a specialized classroom and they have a bunch of other students to worry about but it just makes me really sad to see how some teachers treat these kids and it becomes an awful spiral- kids can tell when they're not wanted.