Fptp does not give us a logical veto against socialism

If democracy is to have a veto against socialism then fptp is not democracy unless you consider it possible to vote for a fptp party. It is impossible to logically vote for a party which will not give you full democracy so it is illogical to vote for a party which supports fptp. Since the centre-right party in a two-party fptp system generally supports fptp then we cannot logically protect ourselves from socialism and so we do not have democracy. Only pr is democracy. Democracy requires that we have a logical veto against socialism. Fptp does not give us a logical protection against socialism.