And the thing to do is simply to like what you feel to like with avoiding any stuff you don't feel to like.
Easy enough. I really have not noticed any commercialness or genericness as being to form a change at any point, since such will have been apparent in the eighties and nineties right up to now, especially among superhero stuff such as Marvel or DC.
Although I would say that Marvel both as DC might seem somewhat less diverse these days, which would have all other brands to potentially be seeming only the more diverse. And any placing comics into markets as falling into place with some loud and mostly sensationalized movie, I wouldn't think such would be making for good comics per se.
It will be subjective, but I'd think publishers had best be catering towards creators and the creative talents in order to have them be making quality books and titles.
So maybe in that sense you might be right, but only as far as Marvel or DC stuff and such will simply not be the only thing which comics would have to offer.