Obviously being a non usa person I was not offended at all, but I could not make the connection to the topic title and the song!
It sounded more like a protest against how the usa nation is acting in the past and present.

Glad you said it wasn't about the inauguration

About the song;
I think your lyrics are very polite, so how could anybody be offended, unless ofcourse when you feel guilty.

But it might be that I am missing something as american is not my native language.
There's a dutch proverb saying:
Whoever fits the shoe turns it on.

When I can believe the polls ? there are about 50% americans who will agree with you.

This is the bar so anything can be discussed as long as you stay polite

Fred