Running a fundraiser for Trump is not controversial even probably to plenty of liberals, and if you are referring to Thiel's 2009 essay, that is a very uncharitable and biased summary of what he is saying.
It is an incredibly straightforward reading of what he wrote. "Most importantly, I no longer believe that freedom and democracy are compatible." He was 42 years old when he wrote that.
He is welcome to apologize or publicly state that he no longer believes this, and he has done that for other past controversial statements. Since he has not done so, we should conclude that he still holds this belief and acts accordingly.
He is welcome to apologize or publicly state that he no longer believes this, and he has done that for other past controversial statements. Since he has not done so, we should conclude that he still holds this belief and acts accordingly.