Same here, I'd rather vote Lib Dem or even Greens but I simply put can't justify wasting a vote for someone that won't win and give Bernard Jenkin (Extreme brexiteer conservative MP) an easier time of getting elected. FPTP is more about voting against someone than for it. So to try to get him ousted my X had to go towards the Labour candidate. (2010 I voted Lib Dem because they had the better chance, before that it was for Ivan Henderson the person even though he was in the Labour Party).