/pol/ isn't what ruined /bant/, it's the fact that this board is in a state of nigh-anarchy and there are no board-specific jannies to actively enforce the rules, only 4chan mods. This is why schizospergs flock here, because they know there isn't a janny to faceplant them to the ground and shut them down if they attempt to have another autistic fit like in the other boards (of course, just filter those schizoids, but this only changes the user experience for yourself). If I'm wrong, then it's because the janny moderating /bant/ has neglected his job and is inept. The users can make a collective effort to improve the quality of the board, but don't kid yourself because this will only go so far, they're still ultimately in a state of anarchy and there isn't an entity to force those who don't comply to do so as well. /pol/ is just icing on the cake. /bant/ is still a trial board. The problem resides in its inherent structure, so stop wasting your time on this shithole.