Perhaps you can point me to an example of a Marxist country? I haven't seen one - really?! Not one?
Look, capitalism has its faults. These need to be sorted out.
And some capitalist governments do capitalism badly. A succession of British Prime Ministers has sailed the good ship Britannia into choppy waters.
For the last twenty years or more, Britain has been living beyond its means. New Labour drove the country into the ground - when they were booted out of office in 2010, the deficit reached £1 trillion. David Cameron and Theresa May have been just as bad.
But there are countries that do capitalism very well. Germany and South Korea are good examples of democratic, capitalist countries with strong economies. There might be more examples but, since I'm no expert on politics and economics, these escape me.
There must be at least one government of a country - past or present - that is/was thriving under Marxism, surely ...