Here are some medical thoughts on the issue.
https://www.newhealthadvisor.org/Circumcised-Vs-Uncircumcised.html
I used to think "mixed emotions" was a bus full of lawyers going over a cliff with one empty seat. Now I think it is the blue states getting nuked by Russia. Pissed that we are attacked, but happy they started the cleanup of some of our worse shit holes.
Before we jump to conclusions without all the facts, let's consider one possibility. Marco and POTUS had a serious "come to Jesus" talk. Marco confessed his errors, made serious consessions and promises in return for the endorsement.
No, I have no source or evidence for this. I am just trying to square why a man I trust completely would endorse a man I don't trust at all.
More red than blue, but certainly has a magenta hue.