MCU hate has got to be the most pedestrian opinion in all of film discussion. There is no good faith argument about the MCU being bad for cinema or objectively terrible in and of themselves. At worst they're generic and yet people obsess over letting everyone know they hate the MCU. Even RLM, the normiest of normie film reviewrs, love shitting on superhero films despite liking most of them anyway. You ask anyone who hates the MCU and their own taste is usually surface level interest in arthouse, never straying too far from recognizable foreign names and watching mostly English language films.
It reeks of letterboxd narcissism to voice hate for the MCU and capeshit; more so when it's always about who watches capeshit instead of about the movies themselves. People who like the MCU usually end up having pretty unique tastes, even if it's all mainstream stuff, which is more than I can say about all the faggots on twitter and other such film corners of the internet who share the same capeshit jokes and all love the same twenty movies. Oh wow, The Sacrifice instead of Andrei Rublev in your top 10 movies, how very brave. What a surprise, Godard, Kurosawa, and Lynch among your favorite directors. Maybe... just maybe... you're hip enough to have Chunking Express somewhere up there. Shit is so boring.