This needs a citation, because whenever I've seen people say this, they cite this this essay https://www.cato-unbound.org/2009/04/13/peter-thiel/educatio...
And frankly, if you think he opposes women's suffrage, you didn't read it. He clarifies further in an addition:
But the most intense response has been aimed not at cyberspace, seasteading, or libertarian politics, but at a commonplace statistical observation about voting patterns that is often called the gender gap.
It would be absurd to suggest that women’s votes will be taken away or that this would solve the political problems that vex us.
>>-Thiel is the (primary?) backer of Curtis Yarvin, the alt-right (read: white supremacist) thoughtleader about "human biodiversity" (read: why some races are biologically inferior).
Moldbug is explicitly not a white supremicist. You can read his explanation here: https://medium.com/@curtis.yarvin/why-you-should-come-to-lam...
He disagrees with you about factual matters of human population genetics, but not about the moral issue about how people with different genetics should be treated.