As an atheist, I have two opposing takes on Thiel. Firstly, I think he's a good candidate for antichrist himself, though Trump is probably more likely. Secondly, it's just rubbish, like stating that so-and-so is a reincarnation of Thor.

Personally, I'm more worried about his vampiric practices (https://newrepublic.com/article/135706/peter-thiel-vampire). I'm certainly not going to invite him into my house.