Of course.
Imo, it would be throwing my vote away, to ignore the likely consequences of voting one way or another.
Who to vote for depends on where you live, what the balance of power is in your own constituency.
This is not ideal: I'd far rather vote for a party I have the most belief in. But that's what you get with FPTP: a crazy, outdated version of democracy, that in the whole of Europe, only us and Belarus still cling to.