That much was obvious. The trolley problem is so famous because it really is an ambiguous moral problem. The OP brought it up to imply murdering Brian Thompson was justified, in that now some other people will live who would otherwise die. This idea is a fantasy, however, which besides having no evidence to back it, doesn’t even make sense once examined with a modicum of criticality. Once the remnants of the dream of vigilantism are brushed away, this wannabe trolley problem becomes plain: it’s nothing but an unjustifiable murder by a mentally disturbed egotist who thinks he has the right to play executioner.

This is real life, not a Punisher comic. Democracy ain’t easy, and as soon as a hurdle appears people itch to find an easy workaround, but there’s no way around doing the hard work of fixing the system.