It's a long story and the topic is extremely polarizing. I'll try to keep this as short as possible. Basically, around when the MCU was getting popular, the Marvel comics decided to switch out some of their iconic characters for female and minority characters. This wouldn't have been bad in and of itself, but they also hired writers who had little to no experience to write those comics. (It should be noted that alot of these new writers were also women and minorities.) This definitely showed in the comics which were not good (I've read a few of them) and some fans started making their opinions heard on social media and YouTube. The big two, along with some activists, took this as an attack on the writer's characteristics/identities and started calling these fans bigots. Tensions grew and grew until it all blew up around 2018 when Richard C. Meyer, one of the YouTube critics, crowdfunded Jawbreakers and became successful. The arguments are still going on and, in some forums, you can't even mention "comicsgate", the name for the movement pushing back on all the changes, without being dogpiled or banned. I do consider myself comicsgate because I genuinely don't like a lot of the stuff Marvel and DC are putting out but at the end of the day, I just want to read good comics.