No prob man
When it comes to mascots, let's just say that they are one of my biggest aggravations not just as a Native person, but as someone that works with kids. They are deeply problematic for a few reasons, not the least of which is the effect they have on kids. The American Psychological Association released a whole thing some years ago detailing them as toxic toward children and harmful to their mental health. I can dig up the link if you want. And I say this as someone that most people never guess is even Native at all. When I grew up, I never had the issue of looking like a mascot. Many of the kids I work with, however, don't have that luxury. And believe me, looking like the school mascot has the extreme potential to blow super duper hard.
Part of what's so damn frustrating here is that mascots are symptomatic of a larger issue that has ground up Native dignity for generations: being told by other people what we can and can't be upset about, or just how to feel about things in general. It's been a real titanic struggle to have ownership over our own positions on how we are treated. The example of blackface gets brought up a lot in conversations about mascots, and I think it's very important to realize that, while some people would of course have no issues with blackface and think black people shouldn't give a crap, the conversation rarely takes the direction of it being inappropriate for black people to have a problem with it at all. Saying you don't care that someone is upset is quite different than saying they don't have a right to be upset. And emotion aside, it really is just entirely inappropriate. All stereotypes, whether "positive" or negative, are harmful. I had a coworker a while back that always got asked computer questions because she is Asian. Out of a whole room of staff members, people would single her out. Pissed her off. I think most reasonable people could see why that kind of thing is frustrating.
As for microaggressions, our society is kind of awash with them. Native culture was forcible diffused and co-opted for so long (it still goes on all the time) that there are a lot of things which fit the bill. It's important to recognize that many, if not most, wouldn't use "pow wow" and other terms in a pejorative or insulting sense of some kind, but it certainly happens. The thing is, not only were those ideas taken, restricted, bastardized, outlawed in practice, and on and on, but they just flat out get used wrong. Pow wows are... real. Like, they happen. It's a specific and very important practice. When it gets thrown around inappropriately, many of us cringe even if you don't see it. Native people have been beaten into being submissive about microaggressions due to the long history losing in the face of very overt aggression, and the abject refusal in many cases from aggressors to change. Its a real problem for us, this whole passivity thing, and it's our responsibility to change it. That being said, you can't expect people to fix innocent behavior if you never offer a correction at all. If someone is saying pow wow in a way that is deliberately insulting, i'll snap at them on the spot. Otherwise, it's counterproductive. Better to just plainly and calmly explain that it's inappropriate. Give some education freely and without malice. People often respond very poorly regardless, because one of the deeply seeded issues with microaggressions (especially when it comes to Native culture) is that those knowingly committing them feel staunchly entitled to do so. You can't make headway with someone like that. Trying to explain how harmful mascots are, for example, will invariably just be all about them, their rights, their beloved mascot, how you're trying to steal it from them, and so forth. They can't see past themselves, and don't want to, anyway.
I feel like I wandered more than a bit, but hopefully this was helpful.