The Lib Dems Don't Talk About Brexit - It's Just a Function of First Past the Post

I feel both annoyed and surprised by how little Brexit is talked about by front rank politicians. Partly that's just a function of first past the post, isn't it? There are an awful lot of labor supporters who are very disappointed that Kirst Don was not really banging the drum for a sort of single market or rejoin position. It seems particularly absurd as well that the Lib the Lib Dems for example who I thought would be a sort of repository for a lot of this stuff don't seem to be up for that either.