Yo, here to talk about MHA.
The latest season has been alright. I think the content is definitely carrying, and although the animation isn't as strong as the second season, or other seasonal shows right now, its still got a decent number of animation highlights each episode.
In terms of the manga, things look like they will continue to get more choatic with Kurogiri being set free. Honestly, the sub plots have been the thing I've enjoyed the most, though I feel like Hori's lack of preparation is meaning that he has to do a crap ton with the characters spontaneously and I'm not sure that works most of the time.
Its also very clear that he doesn't actually have a deep analysis of social issues or solutions to them beyond noting "social issues actually exist". I wouldn't even say Hori's message is as challenging as something like One Piece, which is tonally a series a lot less mature, but still promotes more radical messages.
I don't particularly care for how One Piece presents racism in Fishman discrimination, but at the very least there is a greater focus on systems like slavery which perpetuate racism, and the freedom fighters(specifically referring to the sun pirates, not the Arlong or new Arlong Pirates, who are supremacist groups) aren't shown to be led by just misguided evil people. Again, I don't think its presentation is perfect, but it has some meat to it.
MHA's discrimination arc is weird. Quirks are innate, and heteromorph discrimination is purely superficial in nature. The comments around "high rates of incarceration" and stuff definitely makes it shape up to be more of a race allegory, but really, I think you could easily substitute other minorities into the allegory just as easily.
However, I think its issue comes from its lack of any sort of systems based analysis. Like, its more than people just thinking other people are gross and having prejudice. Those ideas don't pop out of nowhere and they don't exist without some kind of point.
Like, using the One Piece analogy, there were potential benefits for facilitating discrimination against fishmen for the purposes of the One Piece slave trade.
Hell, with other examples, you could point out how cultures or religions were crushed for the sake of hegemony.
Whats the point of mutant discrimination in MHA, a series filled with powers and abilities that made establishing a single hegemonic norm really silly?
Hell, the series could even have made a point of pointing out the silliness of mutant discrimination in a series with characters with tons of different appearances(hell, there are tons of human characters with non human characteristics).