Both capitalist and socialist societies seem to struggle with forced compliance, with dictators, coercion and corruption following suit (see Cuba, Russia, U.S. for a few examples). Is there a role for liberty in either system?
I think so: namely that a society can be constructed with liberty in the sense you mean it. I think society needs to strive and seek ways to achieve that. I dont think this is a speculative matter; no one can know whether it is possible or not, but that does not matter much. The point is to live in a society that seeks such a result, works at it, because that makes a society bearable and good as opposed to the deadend of a society - or its members - who have given up.
So the issue is to think through what basic changes in economic, politics, and culture are needed to support a libertuy-based system and then to pursue their realization.