4th Amendment text: The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
That's the nature of swatting.
Even with a VPN, and a burner phone, it could easily be tracked and the criminal arrested.
Don’t believe me? Call a death threat into Joe Biden. Call DC police and say a U-haul arriving in DC today is a MAGA fertilizer bomb. Or say you have 10 stinger missiles and intend to shoot down airliners on takeoff tomorrow at Dulles Airport.
Then go make a cup of tea and wait for the FBI and cops to show up at your door. VPN or not.
They are not doing anything about swatting for the same reason they are doing nothing about the border wide open, or the BLM/Antifa terror riots. It is because Leviathan finds those tactics useful and allows them.