The biggest danger to US democracy is not Donald Trump or the Project 2025 christofascists, it’s the crushing ignorance of the US population. The gutting of the public education system means that many if not most Americans don’t understand that, “fascist” isn’t just a name like, “poopie head” that you call someone. It has a definition and clearly defined policies/behaviours that closely align with Trump/Vance/Johnston and their enablers. Communist and Marxist are very clearly defined things. Harris/Walz are pro business which means they are definitely NOT communists or Marxists.
If the US population were better educated and more knowledgable they would dump these Retrumplican clowns and rebuild the Republican party from scratch.
It intentional semantic drift and has been happening for a very long time. They erode harsh terms with hyperbole and make normal positions seem extreme by stereotype and strawman. That’s why I prefer specifying that I’m Mutualist rather than explain how the terms socialist/capitalist have drifted out of dichotomy or how the term anarchist and libertarian have become parodies of themselves.
Modern Libertariansm is ridiculous. Libertarianism is far better aligned with socialism (where the people do the work and most of the the benefit stays with the people) than it is with either communism (where the people do the work and most of the benefit goes to the government/plutocrats) or capitalism (where the people do the work and most of the benefit goes to the wealthy/oligarchs.) Modern Libertarians are extremist right wing capitalist stooges.
Your definition of communism further proves the earlier point about semantic drift. All of these terms are problematic because of their histories in the past 200 years.