One of the tactics of communists is to destabilize a country by ripping out all the foundations of the society. History, morality, traditions all must be marginialized and eliminated as much as possible.
Here comes flat earth, to contribute to that. They love to come up with scientific-sounding explanations why the earth is a flat disk, and ignore basic physics. They toss around a lot of complex sounding explanations while ignoring observable facts and invent their own science. It's all done in an effort to destabilize the country, just like all the sexual madness that's being pushed.
Oh, I agree. There are legitimate, genuine conspiracy theorists who will believe just about any theory imaginable, and have their reasons for it. It's up in the air whether the more "out there" theories were thought up by genuine people, or by subversives. In any case, it's obvious that the more out there theories are absolutely used to poison the well. But, you're right, we shouldn't necessarily acquiesce to how others feel about us or our beliefs. I was only pointing out how subversives use those more fringe theories to denigrate the entire community, to deflect away from the things they'd rather not discuss, and many subversives will keep a fire lit under those fringe theories (and push it themselves) as a means to further their goal to paint this sphere as "crazy", or any number of other ad hominems.