> If "person who supports an abhorrent ideology" is a protected class in SV restaurant service law, I rescind my call to ban him from getting a table, and change it to "let him eat alone".

Political ideologies are legally protected against discrimination in California.

But even if they weren't, why judge someone by their beliefs? The only reason you would is if you think support for Trump is a moral defect, with no exceptions. In other words you're not against him because of his political beliefs, but because of your (not universal) beliefs about what is moral and what isn't.

> We all choose to associate or not with people based on their beliefs.

Disagree. Most people judge others on social status and personal character, neither of which have any link to political ideologies or personal beliefs.

> he is not welcome at my house and I won't work for him

That's a fine personal decision, but there's a huge leap between "I don't want to be involved with him" and "everybody else should ostracize him, or they are just as evil as him". The former is "live and let live", and the latter is "the world should bow to me".