If you want to live in a country with rampant poverty, homelessness, crime, etc then go to a country with low or no income tax. If you're not a lord in a feudal society then you're a serf.
One lasted about 70 years, turned a country from "agrarian" to "beat the USA to Earth orbit, put landers on the moon and Venus first, roughly equal nuclear capabilities".
The other big one went from "agrarian" to "makes most of your smartphones, e-readers, etc."
But more than that, if your standard for "marxist" is "Laborer coordination and workforce strikes", then the UK, France, and Germany are currently also Marxist. The UK and France brings the number of permanent UN security council members who are "Marxist" to 3 (not 4, because Russia doesn't have those things today), and those plus Germany are the economic backbone of western Europe.
Also India. They've got two different Communist parties, the split being because one wanted to be more Marxist than the other: https://en.wikipedia.org/wiki/Communist_Party_of_India_(Marx... vs. https://en.wikipedia.org/wiki/Communist_Party_of_India — but by the standard you use here, the https://en.wikipedia.org/wiki/Indian_National_Congress is also "Marxist", which will probably annoy all three parties for different reasons. Anyway, they also went from "agrarian" (when they kicked my parents' and grandparents' generations out) to "nuclear powered, industrialised, have a space program".
Yeah, it was able to channel more of the output of the workers into achievements like nuclear weapons and space programs. It didn't put much into things that actually benefitted the workers, though.
So the USSR may not be making the point for you that you think it is...
To read about people standing up for their rights in a Marxist State read Robert Conquest's 570 pages of 'The Great Terror' - an account of the crimes committed against humanity in the name of the Soviet Communism that emerged from the 1917 revolution. 'We'll do it differently' is the usual response. Sadly this always leaves out appreciation of the human factor whereby charismatic leaders arise and are convinced they know the truth and the way. Before considering a revolution, ensure there's a solution for this human problem of leaders who lead the masses (they regard the latter as such) down a path that in retrospect is seen to be a disaster. Pol Pot, The Great Leap Forward, the Iranian Revolution. We need to sit down and think about this before taking to the streets.
How about evolution rather than 'eggs in one basket' revolution?
All animals are created equal, but some animals are more equal than others.