Why must you force your beliefs onto communities with tens of thousands of people, many of whom don't agree with you? The status quo is that kbin.social federates with basically everywhere, as it should since it's a general-purpose flagship instance. Why do you want to change the status quo because of your personal beliefs?
Instead of trying to force Kbin.social to change, maybe you should host your own instance where you can block Meta and everywhere that federates with it. Or you can join a Kbin instance that already does so: https://kglitch.social/
But there should still be places that allow for federation if that's what they desire. That's how Kbin.social is currently set up. I am defending the current status quo, and you are trying to argue for changing it. There are instances that already agree with you; you don't need to stay here and fight everyone who disagrees.