This is answering the wrong question. The point as I took it of idlewords' warning is rather, if you are a woman, or a Muslim, do you really want to work with a company where you might be expected to deal with Thiel as a consultant?

You say so yourself, as did sama and paulg: Thiel's role in YC is to advise startups who enter into the program.

Were I a woman, I would be uncomfortable taking money from YC on the contingency that I would have to do business with someone who believes that my gender being given the right to vote undermines the entirety of democracy.

Were I a Muslim or a Mexican, I would be uncomfortable taking money from an organization that might expect me to share business information with a man who has spent millions of his own money supporting a candidate who believes that people of my religion or race should be registered with the government and deported en masse.

Indeed, why should I, or anyone, want to do business with someone who hates them? Who sees them as subhuman? Or, since I'm sure you're about to rush to equivocate on this, at least actively campaigns for, delegates for, and finances, a political machine that does so?

idlewords' advice was, frankly, exactly right. If you are a Muslim, or a Mexican, or a woman, you should think very carefully about applying for YC, knowing that Peter Thiel is the kind of advisor you may be expected to cooperate with as a contingency of your funding.