Given that - I for one have zero concerns crossing US borders. Of course regarding other countries could well be a different story... It all depends on their own laws.
I am a U.S. citizen, and like you I mostly have zero concerns. But not everyone is a U.S. citizen, and people are being detained under questionable circumstances right now (including some Europeans). This is an international forum, and so it's not just about me or you. We all have our own anecdotal experiences and feelings. The issue isn't just about us.