Don't lie with dogs. Don't take money from Andreessen if you think Snowden was a hero. Don't continue to partner with Thiel after he continues to support Trump after revelations of sexual predation put to rest that any of this is just folksy bluntness. Trump is the most dangerous candidate I've ever seen. MSNBC has reported that he's contemplated the use of nuclear weapons against ISIS.
Continuing to prop up a billionaire that actively campaigns with Trump and continues to funnel money towards him is a grave mark against YC, and frankly surprising given how for most of YC's history they've prioritised helping first and money second.