i personally don’t think it’s unethical to go to grad school — ultimately it’s exploiting the student in many ways: financially, via TA labor, and in getting to boast student achievements.
this is a US perspective but as someone who went to school in one of the states banning a bunch of topics and defunding DEI programs etc i will say the laws banning academic topics are a huge issue right now and incredibly disruptive to experience, mentally and especially academically because profs can’t teach certain topics or start to just leave the state bc of it.
i’m considering grad school as well but as my academic work is centered around gender, queerness, social movements, a huge part of it for me would be working out in what states could i have a realistic chance of actually being able to do that work, given the increasing censorship of those subjects in many places?
and this is not even to mention student loans nor all of the repression of students’ right to protest even in states without academic censorship laws!
tl;dr? i feel for us prospective grad students, it’s more of an issue of what are we willing to put up with for an advanced degree rather than is it unethical to partake in higher ed again.