Words escape me. This is what Rats have wanted all along, a disarmed populace that they can control more easily. If the SC rules in their favor, that will be the shot heard around the world, and the USA will be full fledged civil war.
I believe Biden's handlers are so gleeful and infatuated with their successes they've had so far that they have no clue what would happen to this country should the 2nd Amendment be nullified and they intend to continue on at full speed.
Having said that, there is hardly any chance SCOTUS would violate the Constitution they are bound to uphold.