You're probably right. But how is that at all relevant here?

It'd be one thing if it's just two random dudes at a bar and one makes a comment on the other's shirt. Anything goes.

If you're a professional, directly interacting with customers... finding a political topic, involving the customer, and sharing it on social media... that's beyond just "poor judgment." That's absolutely bonehead stupid. Regardless of which specific political party it involves.

It's already made a major news outlet, I'd be amazed if this person kept their job.