The original X-MEN only made about $150 million in domestic box office. And what was "Blade's" box office take?
"Spider-Man" made $400 million, really ushering in the superhero blockbuster.
That wasn't Dream
's original claim, though. And your response didn't mention blockbusters. You said "kicked it off", which I took to mean "was the first popular outing". Well X-Men was rather popular.
Well if that's the claim, it's still wrong. There had already been four Superman movies, and the fourth Batman film had come out a year before Blade. I don't think that "Blade," which didn't even do $100 million domestically, and was R-rated, really "kicked off" modern comic book movies.