I think the issue is a bit more complicated. It's easy to paint Awkwafina as a culture vulture since she is Asian and it's something that people just don't have tolerance for Asian-Americans picking up AAVE, regardless of their upbringing, because that's not "their culture". Like I see the discourse in this thread, and there is a lot of measuring how close the actual neighborhood she grew up in Queens is to more black neighborhoods, but it seems to me that is a much tougher thing to parse due to how much the New York City/Queens accents are seemingly pretty ubiquitous and how if you are hanging out in areas were people are speaking AAVE and around Hip Hop/youth culture, especially in an large urban area like NYC, it's something you are around and pick up. As someone who grew up with Hip Hop and in Hip Hop urban circles in LA (which is a bit different culturally and geographically) there are Asian-Americans who grew up in that environment that don't necessarily talk with an AAVE accent (some do), but Hip Hop influenced slang and accent is apart of codeswitching that I've noticed sometimes Asians just are considered imposters since they have their "own culture" and are more likely to get criticized than, say, white people in similar sort of circumstances, despite being part of the Asian diaspora in America trying to find their own Asian-American identity, that doesn't really exist for Asian-Americans collectively and being Asian-American means you aren't "white" or full Asian anyways. It's an odd place to be in culturally.
Now I can't speak on Awkwafina's background, and just knowing she is from Queens, maybe she has more legitimacy to claim that she's picked it up through cultural osmosis. I don't know her, but it's totally possible people are trying to pull a "gotcha" and aren't willing to give her the benefit of the doubt. That being said, she's carved out an interesting niche as the go-to "quirky urban Americanized" Asian in Hollywood that I totally understand it rubbing people the wrong way due to how much she has been typecast for that exact role. Like many Asian-American roles though, she actually gets work because she is a stereotype and a novelty, which is it's own sore spot in an industry that doesn't care to cast many Asian lead or supporting roles.
I don't think Awkwafina is a particularly good spokesperson from her quotes, and that is another issue in that she's attempting to be a voice for Asian-American issues (like very few Asian-Americans in the entertainment industry even get to a level of visibility to speak on stuff like that) and not everyone is going to be well-spoken or an expert, yet the expectations that someone like her will be perfect and speak for the experiences of the entire Asian-American diaspora as if we are a monolith. If she is speaking in ignorance, than it is fair to call that out. It's fair to be critical of the direction of her career of mostly playing some "urban Asian-American", even if white Hollywood execs are knocking down her door for her name recognition when casting Asian actors that aren't actually just big actors in Asia (of which there seems to be a small pool they seem to care to pull from).
I'm not going to defend her career in the general sense, since I feel it's always been tasteless to lean into these typecast roles with an exaggerated "blaccent", but at the same time, I've seen how Asian-Americans can't even make a career in Hip Hop without being considered an imposter by some (no matter where they grew up). Someone like Dumbfoundead grew up in Koreatown in LA, and when he blew up big, I remember seeing a lot of that sort of criticism, even though he has less of an AAVE "blaccent" like Awkwafina, and instead has an accent that I guess is kind of a mix of cultures in the area like Latino and black, but since he isn't speaking like some whitewashed Asian, some fresh off the boat Asian, or whatever a supposed "Asian-American accent" is than they are "faking it". I've seen how hard it is for Asian-Americans to have a career in Hollywood and the type of roles they actually get. I've also seen how the career of someone like Margret Cho can make someone become the default voice for Asian-Americans due to being one of the only visible Asian-Americans in Hollywood, and while I think she has spoke out a lot about issues in pop culture that I applaud her for speaking on and I do feel like she's become more educated in various issues over the years, she's also had some bad takes and things I disagreed with her on and that is kind of the problem with a broad group essentially having almost no representation; you have these imperfect vessels being the spokesperson for so many people or the representation of a group and it's not really fair to that person or the groups they represent for the expectations that creates.
Basically, it's fair to say she is a hypocrite for making a career off a exaggerated "urban" accent while saying she won't do stereotypical Asian accents, because it's a poorly phrased statement at best.....but don't reject that point she is making about Asian-Americans being expected to be cast in roles doing stereotypical heavy Asian accents. How many roles do you think that racist ass Hollywood is asking her to do sending her scripts to her door where she doesn't have an "Asian accent" but is asked to do one for the one token Asian role in a movie? Just saying. Being a PoC doesn't give someone an excuse to not be respectful of black culture when clearly taking from it at all, period, but I think there are more issues at play here that are also being glossed over by people who are ignorant or not sensitive to the Asian-America experience, and I'd never thought I'd be typing up something even tangentially defending Awkwafina, especially in regards to her cringeworthy "urban" characters.