This will lead to an unpredictable escalation in the war, because these drones can be remotely piloted in the USA or western Europe.
There would be no plausible deniability that they aren’t.
This would be a direct attack by USA military on Russian forces.
There's no way the Russians could prove that, and even if they did, going after US or NATO assets would be suicide for Russian forces in Ukraine and the Black Sea.
[”...these drones can be remotely piloted in the USA or western Europe.”
“There would be no plausible deniability that they aren’t.”]
Never bothered them in the dozen or more places they stuck their noses around the world since 1918.