You're of course correct on that, but Mullvad the company gave (somewhat) clear news release that their company is against far right (or left or any 'far' direction) politics. I'm not a customer and I couldn't care less about Mullvad, but I think it's worthwhile to keep in mind that company isn't the same than one of it's founders.
Of course if that is a breaking point to you, feel free to vote with your wallet and I can very much understand the decision, but there's very few fully reputable companies around so I can also understand if that's not a hill to die on.