Care to explain why you think you don’t have to get off of someone’s property if they or in this case, their representative, tells you to?
Usually, there has to be a reason for the clerk to ask a person to leave, ie; disorderly conduct, disturbance, something that would be detrimental to the business.
I doubt he could refuse service to someone just because he disagrees with the customer’s political views. Even though the Trump supporter is not a “protected class”, the business is open to the public and the clerk was way out of line.
Sounds as if you missed the whole public accommodation thing arising from the civil rights era. That store is a public accommodation. Mr. Super-Anitfa, unhinged vape shop clerk by day, had no right to refuse service or to attempt to bar him from the store. He had done nothing illegal. He wore a political tee shirt and hat. Thats it.
You can't seriously be siding with this unhinged profane infant in a vaguely adult body, can you?