Why Do People Vote The Conservative Party In the UK, Or any Left wing Party in the UK?

I just Don’t understand why people vote for them.
Well Coming from a BNP supporter i can see why i hate them to some extent, but i want to know the real reason to the People who vote BNP and what the conservative party offer to them.
It wasnt a pretty sight the last time the conservative party was in power of the UK.

,,,I VOTE FOR THE BNP