Of course Arse Pincher should resign as an MP.
Neil Parish, the former Tiverton MP had to resign for looking at porn in the House Of Commons debating chamber. He is pissed off that thus far Pincher remains an MP.
In the 12th December 2019 General Erection Arse Pincher's majority over the 2nd placed Labour Party candidate was 19,634. The LibDems got 2,426, just saving their deposit.
So, the majority over 2nd place of 19,634 makes it in the current context a marginal seat.