There are 350 million people in the USA. the AF has 2,000 combat aircraft. The is 1 aircraft per 175,000 citizens. There is not enough Army and Af to enforce marsh law on NJ let alone THE ENTIRE USA.
They will not be able to attack civilian buildings with F-15s. They’re useful only against established, isolated enemy positions, not guerrillas embedded in a big city and attacking at their leisure. For that you need SWAT teams and intelligence.
Biden reveals more about himself than he does about his made-up enemies. He would use F-15s, probably indiscriminately. If CW II is forced upon patriots, they would be invisible and everywhere and also nowhere. They would own the ground.