If Altman is comfortable with the idea that his actions are encouraging people to comfortably support Donald Trump, then I'm comfortable with him continuing to endorse Peter Thiel.
Any more would send the wrong signal and establish a odious norm in our free society.
Altman has made it quite clear that he endorses neither Trump nor Thiel's support of him.
"Endorsing" and "refusing to purge" are two different things entirely.
Do you really see no difference between the two?