First Past The Post means that everyone must compromise

First Past The Post elections prevent (mainstream) political parties being true to their beliefs, since they must be more to the centre to win an election. In the United States, the Democrats must be more right-wing, and the Republicans must be more left-wing. We are not able to vote according to our political preferences because that would be a waste of a vote. To have our our vote count for anything we must choose one of these two parties. The same principle applies all around the world where FPtP is practiced.

It means all parties pander to a kind of meaningless compromise, instead of having true principles. We do not know, or get, what the people genuinely want, no one is satisfied, except perhaps the President.