Capitalism, while not perfect, is the only way human civilization can advance.
No other system provides the massive incentives for excellence and achievement.
It is sad that some humans will become ridiculously wealthy while many others will live in poverty under capitalism but that is the price to pay for human advancement especially in the technological arenas.
Marxism portends holds equality as it's core value, yet in reality that never occurs since political corruption causes those who better serve those in power tend to get more government handouts. Yes, corruption takes root even in Marxist states.
The idea that all humans can be "equal" is a wonderful ideal, but an impossible one at the same time.
The truth is that some humans were born more intelligent, faster, stronger, taller etc than others. It's just nature. we cannot change that.
In order for the human race to advance as a whole, some will be wealthy beyond imagination while others will have nothing.
any other way means the human race will stagnate and cease advancement.
Russia is a mess and fails at nearly everything.
China has risen only because of theft of American secrets and the adaptation of western capitalism into their Marxist system.