And the parent comment isn't the same thing? If you want to prohibit comments advocating for various lenses through which people ought to see the world, you need to apply this prohibition equality or that prohibition amounts to promotion of one particular worldview. And if you want to do that, you have a responsibly to readers to be straightforward about it.

I can see how the Buckminster Fuller quote might feel ideologically baity to some people (I guess? to me it just reads like Bucky being Bucky), but your comment went straight to boilerplate talking points. You even made it to all the way to atrocity and slavery. That's a huge step down—a whole staircase, actually—so I don't think your argument about equivalents works here.