This isn't about defiling ourselves because of the type of meat we eat, it's a method of worshipping other Gods, well known to cults. You miss the point entirely.
Exodus 20:3
Thou shalt have no other gods before me.
2.Revelation 2:14
But I have a few things against thee, because thou hast there them that hold the doctrine of Balaam, who taught Balac to cast a stumblingblock before the children of Israel, to eat things sacrificed unto idols, and to commit fornication.
Revelation 2:20
Notwithstanding I have a few things against thee, because thou sufferest that woman Jezebel, which calleth herself a prophetess, to teach and to seduce my servants to commit fornication, and to eat things sacrificed unto idols.
My post didn’t miss the point at all, and had nothing to do with meat — Jesus was exactly responding to the superstitious nature of meat rituals by moving the discussion from the physical to the spiritual.
My post quickly summarized the upshot of all that you quoted. The doctrines of Balaam and Jezebel first came out of their mouths before the acts they caused were committed.