Straw man, counter to facts, and assumptions of fact not in evidence.
Yes, I know that. It was interesting, how these two people, who were having a LOUD conversation, clearly intended to be heard from a distance, recognized the tune so quickly as to very nearly jump with surprise, too. Perhaps you should not accuse others of rudeness until you know all of the facts.
Ignoring the idiocy involved in threatening a lawsuit based on political speech, and ignoring the attempt to intimidate, yes, they clearly exhibited where they were coming from, too.
Perhaps you could have been there, since you speak with such presumed expertise? Is this how you claim standing to publicly accuse someone of slander?
Were you one of the people? Are you about 5'11" tall, white, dark hair, wearing khaki trousers and shirt, or perhaps about 6'2" tall, white, dark hair, ditto clothing. Both short hair, clean shaven, a bit of stubble. Both wearing black work boots with red laces? Both medium build, a bit scraggly around the edges?
Was that you? Or are you just making up what you have authoritatively claimed actually happened in this context?