KalKal
Superstar
To be honest, I think the original Twitter post is actually true in a literal sense.
I think X-Men could have been made without blade, but I think The Avengers probably wouldn't have been made without X-Men.
I think Blade maybe influenced other types of rated R action movies (Matrix, Equilibrium, John Wick) more than it did for the MCU.
To go back to my own post, the more I think about it the more I believe John Wick would not have been made without Blade.
The whole "assassin's underground" idea seems to be inspired by Blade's vampire underground.
Edit:
Just found a quote from the John Wick director:
“If the opportunity ever came, the one that really jumps out to me would be like ‘Blade,’” the filmmaker said. “If they were going to redo ‘Blade’ or something like that, just because I feel that one, for some reason, the vampire martial art action vibe. That would be a cool one to stretch and try and reinvent.”