I see it's mostly just a critique of the Soviet Union and not on Marxism propper. The Soviet Union is not the be all end all of Marxism. Class criticism in general is based on a Marxist framework.
I say the conditions that lead to riots are the results of oppression.
I can speak for "Many People", what I can say is that the protests are for the most part peaceful, but there is always a risk for breakdown when tensions are high.
I have seen pictures and videos of bystanders, random people in black block, police, and protestors all taking advantage of mob break down and getting in on it. The important thing to realize is rhat this isn't all spontaneous. Tensions Hve been rising for years.
Asking for a Marxist government is similar to asking about a Randian Government. The frameworks Rent specifically about how to run a government, but instead criticism of systems in place within a government or economic structure. Lenin and Trotsky took formed a government with the influence of Marxist economics and other ideals from the enlightenment that several other non monarchist revolutionaries used.
If Marxism doesn't have any means of improving society, people might wonder what the point of it is.
Many of the European nations took crites from Marx and applied it to their governance. Germany, France, The Nordic Countries, Spain, etc all have had successes with incorporating ideals from Marx. Germany and Den Mark especially have succeeded in no longer needing a hard minimum wage because of the encouragement and backed unions that give the working people a larger day in their working conditions and bargaining power.
I'm not arguing the need for the government to break up sole ownership of capital at this time. My views are close aligned with Social Democrats.
That is the curse of a material based vaputalist ecconomy. My personal views is that banking should definately be highly regulated to avoid predatory behavior.