"I do think it’s a little bit extreme to feel marginalized because a character you like isn’t featured as much as you’d like or as often as you’d like." You're right, but it's only half of the reason - many fans of less known characters have been bullied by fans of big names. Few days ago I as yelled at for saying I preffer Doctor Strange to Captain America and whenever I say I want new Runaways series, Avengers fans tell me to shut up because "nobody cares about your losers".

Anonymous
I would maybe migrate to some other, friendlier places to talk about comics then, were I you.