I do not understand the DC Vs Marvel debate!

I love comics and as a comic book reader I easily navigate and switch between DC and Marvel. For example I am a huge Fantastic Four fans, they are the character that made me fall in love with comics but I grew to love DC characters as well. Right now my monthly purchased are Fantastic Four, Teen titans, Shazam!, Asguardians of the galaxy, The hulk and Detective comics and some IDW comics as well. So yeah I read a pretty mix bag. I actually feel the same about the movies as well. I can see both Marvel and DC and enjoy both more or less depending on the characters. My fav Marvel films are the two Guardian of the galaxy and Infinity war and my Fav DC films are Wonderwoman and Shazam!. But there are special group of people that feel it's necessary to hate on one studio or the other , I really do not know what they are after by creating post just to put down either Marvel or DC. They would often pick on the box office return on a movie as a way of attacking a film "It did so much less than a Marvel film, it suuuuuucks! You DC looosers! *Add beavis and butt head type of laughter* like if that alone makes it a bad film. Do they realize how childish they sound? To me , unfortunately, they are the ones that gives comic book fans a bad name. And the irony is they are not even real comic book fans as real comic book fans does not go into that ridiculous debate. The only DC vs Marvel I would be interested in would be on the big screen.