So your case that Tucker Carlson is a shire supremacist can be summarized as:

• Someone he once worked with posted racist stuff online (from your first link)
• Some white supremacists are fans of him, and this counts against him despite the fact that: “There’s no evidence that Carlson shares the bigoted worldview of some of his biggest fans” according to the article cited by the article cited by the article in your second link.

That’s a very weak case. Do you realize that?

In one case he was associated with someone who allegedly posted racist stuff online (I haven’t tracked that claim back to see if it’s true), and that person got fired from Carlson’s staff when those allegations came to light. In the other case the association is a one-way association, where some “alt-right” people have posted memes that say you can’t cuck the tuck, hence he’s a white supremacist.

As a level of evidence this is weak as fuck. You should be ashamed to stand behind this as a case, and if you’re actually convinced based off this that he’s a white supremacist you’re allowing yourself to be someone else’s bulldog. You’re being used to spread misinformation.