>>2645485>on contradictionsThe dialectical movements between classes lead to the benefit of one in expense of the other. There's no rule saying the oppressed class will always get the short end of the stick, it's just the most common scenario.
>it is more beneficial for both the proletariat AND the bourgeoisie to slowly establish better and mutually interesting reforms than to have a revolutionThis is false. A proletarian revolution is strictly in the best material interests of the proletariat. There's simply no mathematical benefit to workers in keeping the bourgeoisie around.
There are historical periods in which capitalism is tolerable enough, and in such times the threat of revolution is low. But as labor exploitation grows and material conditions deteriorate (and they will deteriorate, as capitalism has already ceased to be progressive in much of the world), the more incentive workers have to seize the productive forces, and if class consciousness is widespread, a revolution of communist character is more likely.
>on the long term this would lead to classes disappearingThe only way for this to happen is for the bourgeoisie to lose property over the means of production. This means collectivization of the productive forces i.e. oppression by the proletariat over the bourgeoisie. Do you think the most powerful class, with the most leverage, the larger threat of violence, will give away their benefits for free?
>[welfare] comes down the feasabilityYes. A world with commodity production and private property where everyone has education, job security, few working hours, 150m² housing, satisfactory urban infrastructure, access to light industry commodities, and occasional luxury, is honestly an okay reality that wouldn't ever make me mad at society, even if it's nowhere near the realized potential of a post-capitalism world. It is, however, not feasible. For me to explain why it is not feasible would derail the thread and is a topic of very large scope, and then you'd go down the rabbit hole of Marxism to never return.
>a socialist revolution where everything can go bad and become worseCommunist experiences only really go bad when there is an excess of external sabotage: invasions, bombings, tariffs, sanctions, diplomatic isolation, assassination, coups, psyops etc. The communist revolution in Russia wasn't particularly violent at all if we strictly speak of the workers seizing the state, it only turned bad when the "Civil" War reaction happened. And when things go smoothly, they go real smooth. Cuba is a poor, stagnated nation but the working class enjoys a much better life than it did before the revolution, and it is much more developed than its neighbors such as Haiti. The USSR had an explosive development of productive forces and while life was much less luxurious for the white collars than in the US, the Soviet people had a higher quality of life than that of Russians under the Tsar. I won't comment on contemporary China as it is a controversial topic but Mao's China was also more advanced than before the revolution. I can't think of a socialist experiment that turned out worse than it was before a revolution, and countries that had their revolution betrayed suffered a lot in quality of life (see: Russia). There's also the fact that a lot of the luxury enjoyed by the West came from exploitation of colonies or massive injection of capital (Japan).