Why should bitcoiners be embarrassed? Maybe Bitcoin Magazine.

Bitcoin Mag and its conf are not bitcoin.

I'm not Trump fan or supporter but RFK is also speaking. I'm sure they would have allowed Biden or Harris to come as well if they were saying they support bitcoin.

Bitcoin is bigger than politics and those that are getting bent out of shape because a political figure, scum bag or not is courting bitcoiner's support; they are gonna have a big problem with bitcoin as it become more accepted by normies.

Its for enemies. Any good money is gonna be used by people you don't like.

Additionally in the past it was not uncommon for movements that weren't overtly political to have politicians from multiple parties come and speak.

The only people IMO that have a legit beef about Trump speaking would be anarchists. Where we are going we don't need politicians.