That document declared "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights"... which part of that says only some men are created equal, or only citizens were endowed by their Creator, or that maybe some Rights are inalienable?

I see no room in the wording of the founding statement of the USA to read into it that it's OK for an administration to treat some people like shit as long as it's only certain groups. I only get the sentiment that if the administration treats anyone wrong (for a strictly definition of wrong), it's time for them to go.

As soon as it becomes OK to discriminate between those with inalienable rights and those without based on privileges like "citizenship" then it becomes easy to redefine or revoke such privileges at will. There is plenty of historic precedence for just that. The only legitimate reading of 'all' is all, not some or a few or all citizens.