“We’re obligated to observe the “law of the land”, regardless of whether it’s consistent with Talmudic law.”
Actually we are often obligated to give up our lives rather than commit a transgression.
“what stupidity he pleaded guilty”
Uh, no he didn’t. He was not given a trial.
“the Judge Cop gave him the Correct Torah Punishment!”
Ah, so if I see you shoplifting I can shoot you. No trial. Got it.
“Why would counterfeit money be forbidden, without the added isssur of oinaah? ”
The Rema wrote that non-Jews are obligated in pretty much everything in Chosen Mishpat.
“Why are you defending a Russah, like Floyd?!?”
Who is defending him? YOU are defending murderous police. They summarily executed him with no trial. Now while it is true that a Non-Jewish court can execute someone for petty theft, it is only after a trial before a judge with an eyewitness testifying. That didn’t happen. You are defending a halachic violation as well as a violation of secular law.
“Why would counterfeit money be forbidden”
Interesting question. First, I noted the opinion of Rema. But on the other hand, money did not exist at the time of matan Torah, so all references to it have to be later. Paper money did not exist in the western world until modern times so we don’t even have rishonim on that issue. However, as Chazal were pretty aggressive in their support for a workable economic system (banning the use of unminted slugs, banning the use of Jewish coins) so it is hard to imagine that they would have permitted anyone to print fake paper money.