Decline of socialism in the Western world

Wednesday, 01/05/2019, labour day. The day of the left, socialists and communists. As a response the Catholic invented their own labour day, Rerum Novarum. Indeed, divide and rule. Regularly, people discuss the reasons for the decline of socialist parties in many countries. And in the countries where they don't decline, mainly in developing countries, opponents do whatever is possible to remove the left from power, even when this means to impoverish the country, so often the rulers become dictators to remain in power and then of course there are justified reasons they can be removed. Still, I can think of a few reasons why socialism in the West declines (I repeat, my opinion). I don't mention communism because that is/was an extreme form that in normal situation is unlikely to become a main party although a comparison with extreme right shows politicians don't understand why they're opposed to extremism. Socialists often have links with unions and ...