First past the post prevents anarchy

People do not like the government... and if we doubt this fact then tactical voting is evidence of its truth. If people like the government there would be no need for tactical voting because they would be happy to vote for either of the main parties... they might have a preference but they would still be voting with enthusiasm not malice. If people would prefer not to be restricted in choice then government is unpopular. (Government restricts choice.) People are trying to get rid of the government... to improve their choices... and fptp is stopping them from doing so. Fptp stops people getting anarchy.