If Marvel fails, or when Marvel is done with films, movie theaters are not going to suddenly shift into arthouse fare or period dramas or character studies or anything that doesn't have mass market appeal.
It's been that way since Jaws.
Rather than scowling at people enjoying the most popular parts of popular culture, maybe focus on preserving and refining your niche interest.
The public is never going to suddenly "come around." Just love what you love, don't begrudge that it isn't universally adored.“
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