I don't believe that forcing a system onto someone with violence is a bad thing. For example, we must force people to not kill each other, and use violence to do so.

The problem with Socialism is not that it's forced upon people, every system is, but rather that the system does not serve the People. It strips us of our freedoms, rights, and prosperity in the name of equality of outcome. This goal is never achieved, however, since in every instance Socialism has led to a small elite living in luxury while the rest of the population starves.

But you can't pretend like this doesn't happen in Capitalism. It does, just instead of bureaucracy and written rules it's adhocracy and unwritten rules. The only benefit of Capitalism is that it's harder to develop from an oligarchy into a monarchy — and inherently oligarchies are more free since each oligarch can balance-out the opinions of the rest. It's still not a Democracy, however.

When people care more about material wealth than each other, society will inevitably suffer. That is why Capitalism and Socialism always fail. What we need is not Materialism, but Populism.