As far as I know, while mr Trump has vilified illegal immigrants, and I may be mistaken, I don't think he wants to curtail legal immigration (with exception of immigrants from volatile places) but I constantly hear that he's against (all) immigration --I believe he's against a _kind_ of immigration, but not all. It's not like Germany or Sweden or Russia or South Africa just let everyone in. They also have policies, except they exclude people in nicer language.
To add: I didn't think it would even be necessary for Sam to have to say that Peter would stay with YC. I thought it was overly cautious to do so. But this business is ridiculous. I mean people are seriously wanting to hunt people down over political views...
Look, if Trump were to win (or Hillary) it means that more people than not voted them into office and therefore they have the backing of a large constituency. So, we're not just saying the candidate is objectionable but the people (and there are lots on both sides) who are wholly objectionable and irredeemable. Which means our country has gone to the can.