It took ten years and twenty movies for the Marvel franchise to go stale and years more for hating on it to become cool ‡. That's an accomplishment by any metric not specifically designed to facilitate the latter.

You will never be 10 years younger again, but the kids who grew up with those movies will carry forward their fond memories of the good in them and when they find their voice on the adult stage they will reclaim them, making hating on them uncool again, just as we did for the Star Wars prequels. Whether you embrace or reject the backlash-to-the-backlash will be up to you but I'd like to put in a word for the psychological benefits of trying to see the good in things. It's much more fun than ruminating on the bad, both for yourself and those around you.

‡ Yes, I'm sure you were doing it before it was cool.