The idea is to incessantly put pressure on their economy until it breaks or adapts. At which point you put more pressure until they become the DPRK or Iran.
Right, that would be a good outcome. North Korea and Iran are annoyances but not existential threats and they have minimal capability to project power far outside their borders. The goal should be to cripple and impoverish Russia through a sustained policy of maximum cruelty that includes everything short of kinetic attacks.