I think it is more than a possibility, and sometimes a moral imperative. Is it ethical to refuse to engage with people who you disagree with? It is always a pos

I think it is more than a possibility, and sometimes a moral imperative. Is it ethical to refuse to engage with people who you disagree with? It is always a possibility that it is your ethics/world view which is mistaken. That said, your question was "is it possible?", not is it the right thing in this or any particular case. Just be wary of thinking than anyone who doesn't agree with your ethics is unethical, for there be dragons.