If I’m a commie, I wouldn’t care if Trump won

Trump already interrupted the globalist agenda in 2016. They fully expected Hillary to win and serve 2 terms. Their greed and desire for power/control is driving them, hopefully they become more desperate and slip up and expose themselves in a big way.

As lake chuck fan mentioned, the issue isn't with the "communists," but the "globalists." The old school communists are patient, but the new school of globalism has many adherents who are getting way up there in age. They want to achieve their agenda and even a 4 year disruption of that might see many of them in the grave. In addition, even if no long-term structural changes to the government are made, 4 years of Trump is going to awaken more people to the evils of globalism and will lead to more people questioning their agenda.