As a Chinese person, I feel that the term "communism" is somewhat demonized in the West. In reality, not many people in China believe in it either. It might be similar to Christianity; I believe there aren’t too many people in Europe and the U.S. who genuinely adhere to it. I'm not entirely sure if it's the same kind of logic.
Recently, I was watching a documentary about World War II (made by Americans) and was shocked by how severe the casualties were in the war between Germany and the Soviet Union on the Eastern Front, in contrast to the Western Front. Ideology seems to be a primary culprit in that tragedy.
I also watched a documentary about the Vietnam War (also made by Americans) and couldn't understand why the U.S. engaged in that war, sacrificing so many lives simply out of fear of the vague notion of communism. Decades later, we can see that not much happened as a result of that fear.
Most of the time, I feel that people are not so different from one another. There may be slight variations in thought, but those differences are minuscule.
I completely don’t understand why U.S.-China relations have worsened in recent years; it seems very absurd to me. All the mutual hatred stemming from ideological differences is just nonsense, similar to the animosity that exists between different religions—it's all nonsense.