About 1/4 (or less) of /bant/ posters are regulars, i. e. are here every day. About 1/4 of those want to engage with pol, those being mainly coming from pol. Imptrash is another story and is just thrown here to stir up this wasteland and serves no other purpose.
Absolutely the majority of /bant/ doesn't care or even react to pol threads no matter how much pol is spammed here. They just don't care or they leave for a couple of days and then come back to check out what's new.
My main boards are /k/ and visual graphics boards. Coming to /bant/ is to me like visiting my favourite camp fire site in the desert. Watching the latest pol hobo bum fight here is an extra entertainment.