Even if we could, we shouldn't. It's important that everyone feels they have a voice. Even people who are wrong should get to participate in society and have rights.

No-one can stop Thiel from funding whoever he likes; they would just like to be sure that it doesn't go unnoticed that this journal reads more like "Peter Thiel's Journal Of Collected Contrarianism That He Personally Paid For Due To Some Probably Totally Legitimate Reason"

That's fine. Un-personing to silence isn't.