To put the quote in context it was in an essay that addressed people leaving countries through seasteading. So I think it's pretty much in evidence his view is not to deny people the right to vote, but to allow departure from societies one radically disagrees with for new ones.
And would women have the right to vote in this hypothetical new society he forms? Secession doesn't solve Thiel's problem, or the problems people have with him.
There is a big difference between saying a negative comment consequence of X is Y and therefore consider Z. And saying X was wrong therefore revoke X. X had a negative consequence does not even mean that he thinks X was net negative never mind that he thinks X should be revoked.
