This is very optimistic. Much more likely, these people came up in lib education/propaganda, believe communism can't exist/doesnt work/has killed trillions, and so what we need is a new thing that has all/many hallmarks of communism except it was invented by The Innovative, Tolerant, Progressive West. And of course, the more that someone understands the nature of the problem and the type of solutions that will be required, the more any new climate sensitive political paradigm will actually come to rely on and resemble marxist/communist analysis. But no matter how much that yet to be rigorously defined third system has in common with communism, it will always be known as some Other Thing because western liberalism is incapable of learning from anywhere in the global south, let alone the parts of the global south run by communist parties.