>>97062837Rick is Safe as fuck, he has no reason to fight them and would only get mad if he had a stick up his ass that day.
As a threat, all you have to do is not go after him, easy as that. His machinations never go far enough to help anyone other than himself, and he said himself that it's easier to save a universe than completely jump to a new one. If anything he'd probably just introduce or contain some random thing, stupid drunk, and then get some kind of crazy shit they have lying around in return.
Either party attacking each other would just be too much of a pain in the ass for cleanup, and the SCP keep to themselves outside of illuminati watching.