Furthermore, there seems to be some mass delusion here. Fox didn't decide to do a Gambit movie and then choose Tatum for the role among other viable actors. Tatum decided he wanted to play Gambit, lobbied hard for the role, and that is likely the only reason all this Gambit talk surfaced.
All these other actors you guys keep talking about would not have gotten a move made period. Taylor Kitsch had his shot after origins when a Gambit movie was rumored after that but his stock fizzled after some other movies didn't do as well as expected and hasn't really recovered so there is no way Fox or anyone was going to trust him in a Hollywood movie. Josh Holloway couldn't keep his TV show on the year for more than one season. Everyone else I have heard mentioned has never carried a movie by themselves to make a lot of money.
So I really don't why these other guys are even discussed. From the start of this Gambit buzz it was always Tatum or no movie at all because the only reason this is a topic is because Tatum was interested. The idea that Fox should listen to 25k comic book fans (ie the number of people that buy Gambit books) and invest hundreds of millions of dollars in a movie starring someone without a big Hollywood draw is absurd.