There's a line there. If Altman wants to express support for another candidate or express disagreement with Thiel's views -- great! The political process at work. What is not okay is him using his position of power to seek retribution against Thiel for his views. YC is not a political organization. It's not about making Trump supporters uncomfortable, it's about making them afraid to exercise their right to free speech.

To be clear, I am not a Trump supporter, but dehumanizing Trump supporters is not a productive approach.