I know what you mean. The only YT critics I like are Double Toasted and Max & his crew from YoVideogames (they mainly do games, but review films as a group from time to time). They don't exactly like all of the DCEU either, but they're willing give things a chance, and even they hate certain films, they feel never the need to insult some one for liking/disliking something they don't. Simmons (YoVideogames)can get that way sometimes, but it's usually things involving anime. It's why I hardly watch his solo streams or playthoughs.
My parents are boomers and they love most of the DCEU film, yet they are unaware of the online hatred, nor would they care. My dad does not hate the Marvel films, but could not give a shit about any of the Marvel characters aside from Black Panther and the Hulk. Daddy is a stubborn, and if it's not about Batman, Green Lantern, or Wonder Woman, he does not give a shit. Though he was surprised he ended up liking Aqua Man, but felt the action was a bit too videogamey. Note: it was not meant as an insult, but something he noticed. Honestly, though you're dealing with super powered aquaitc people in a super hero film, why would you expect more grounded or "realistic" action? My mom loves the Marvel films almost just about as much the DCEU films.
ProfessorGeek is a thundering dumb ass.