https://www.nytimes.com/2025/06/26/opinion/peter-thiel-antic... - Gift link

https://archive.is/mPjPq - Archive link

So yes, he does say it's more likely to be Greta Thunberg than an "evil tech genius", but does not outright say she's the Antichrist.

I still find it strange that he's afraid of her creating a one world government.