A Marxist is someone who believes in Marxism. Marxism is a creed that must, by definition be enforced by violence. Therefore a Marxist is someone who supports the use of violence.
I don’t think the faux Marxists that we have mucking about these days understand this. I like to go back to the example of children. At the risk of sounding like Steve Harvey, “Poll one hundred mothers who have two or more children under the age of five.”
So, all of you parents out there with two kids of within a few years of each other. How many of you NEVER had to “teach them to share?”
Now, different question, same audience. How many of your had your kids come to you one day, when slightly older (ages six to 10) and wanted you to help them set up a lemonade stand?
The instinct of the human is to better oneself through commerce. We have almost no natural instinct to “share”.
Hence, we are all natural capitalists, and any sort of utopian system based on “sharing” will have to be enforced at the point of a gun.