Uhhh Tatum already had his breakout performances in magic Mike, and jump street films.gambit was in the public eye for far longer than cap and thor were. the movie is what elevated them over him. nobody that wasnt reading comics was checking for either of them.
and breakout performances are just that. i dont know what tatum is capable of, but like downey, who wasnt popping either he could suprise
People love channing now. It was the opposite before those films.