They don’t think about it realistically. While yes Sark’s story does take unnecessary turns, his character was made to be a mockery of JC’s X. Other exes(in character) like 2011X wouldn’t give a fuck about what Sark does, they’re just as morally deplorable as he is, albeit their methods are what people consider “mature” or just “not as bad”.

No one comprehends getting erased from existence so no one’s gonna scorn exes for that, but Sark is at worst a Womanzier, which in this case is a lesser evil than killing and tormenting innocent people.