LogFAQs > #979518694

I wasn't aware of who the villain was in the Twitter clip.

Apparently he is Carl Denti. Aka, the X-CUTIONER.
https://www.marvel.com/characters/x-cutioner-carl-denti

Striving to make the world a better place, X-Cutioner vows to hunt down mutant criminals.

Seems a charitable description, considering he is described also as an "Anti-Mutant Crusader". Described as...

a former F.B.I. agent whose twisted sense of justice led him to launch a one-man war against mutantkind.

Also...

Wielding an arsenal of deadly weapons, X-Cutioner uses his twisted sense of justice to justify his vile crusade against mutants. Inspired by the Punisher's war on crime, government agent Carl Denti armed himself with lethal weapons and launched a one-man war on mutant criminals before setting his sights on mutantkind as a whole.

So a guy who transitions from going after lawbreaking mutants to all mutants as a whole. Also is a fan of the Punisher...who is liked by some unsavory real life individuals...such as corrupt cops and hate groups who adopt his symbolism. I see what the writers were going for.