I would just say how garbage is superheros, marvel, a lot of books adaptations, netflix series, amazon series, disney, and then I would start to offend people who consume it but I won't do that
I feel you. I hate superhero stuff too and many of these streaming originals, but its hard for me to really care about superhero media especially because of this multiverse stuff which is just an excuse for making reboots.
There's so many versions of a character that they just stop feeling unique and special. Like there's millions of Superman, Spider-Man and whatever, like Transformers, its hard to give a stink because that stuff unlike most manga and maybe One Piece, has no single hero to follow and will never end because something like a universal reset will happen, a demon will snap his fingers and change time or the story just moves to an identical universe.
And every time one of them dies, they eventually come back to life even if it takes years only to kill them again later and then bring them back again since its all sales gimmicks. Same for when they get replaced by younger age demographic appealing characters who keep using the same superhero names despite being different. But its like you say, its best not to talk about this stuff too much since western superheroes are the "in" thing right now.