What's one trope everyone hates the most about an MC

For me personally its the MC's who called themselves demonic cultivators who do no good and have no feelings just for them to save every damsel in distress. Like bro if you are demonic at least act like it than they processed to tell others how to be a demonic cultivator when he is literally seen as a hero by every single person he meets. I am not saying they need to be an edgelord that kills everyone in their path or has no friends but if you are at every turn emphasizing that the MC is a demonic cultivator at least make him act like it. Oh and lets not forget crashing out over a random girl that u met a couple weeks ago (truly demonic)