This is super incurious. Capitalism is a relatively new form is societal economic organization. There have been many forms of economy that persisted for long periods of time. Using this as a starting point, every capitalist society eventually fails too. Capitalism isn’t the end ultimate form of economic organization. There will come a time when another form becomes dominant and hopefully better for more than a few at the top. And someone like you will say the same thing about it. Also the argument that every communist society has failed is a statement that is common in the western world. It is propaganda. The statement is just as incorrect as replacing it with any other economic organization of society. Sure every communist society will fail but what it leaves out is that every communist society has been pushed to the fringe by capitalism with war, sanctions, and bullying.