Thats true for a GE not for the European Elections which is why we keep sending crackpots who don't engage and therefore say the European parliment is a joke (because we treat it as such). If people didn't treat anything other than a GE as a means of protest we wouldn't be in this mess...due to the lack of proportional representation.
Of course FPTP causes that to happen as people feel they have to back a side who can win in a GE