I'm actually very slightly inclined to agree with this. Even if it's not Carlson himself, it will almost certainly be someone in his mould.
Jeb!-ism is dead in the GOP and Nikki Haley and her cohorts don't have a hope in hell
Edit: Forgot about Josh Hawley, he stands a somewhat decent chance, although it's probably still too early in his career
If any of this is true, then the GOP can kiss AZ, GA, and TX goodbye, though I guess they'll be kissing AZ good bye this year. Only someone seen as moderate like Haley or an actual moderate like Hogan will be able to hold the Sunbelt trio, a Trumpist or someone like that will further alienate those voters, if the GOP nominates Tucker, TX could very well be Safe D by 2030.
Keep dreaming. Trump is doing better than Romney with Hispanic voters, Tucker would make more gains over that.