If I were being charitable I’d label these heretical creeds as Paulity. They have very little to do with the words and deeds of Christ, or living up to them, and far more to do with how Saul of Tarsus interpreted them.
You may recall the Catholic Church was born out of the first Nicaean Council, where they canonized the four gospels that best reinforced the idea of the supremacy of the Roman state, and burned the hundreds of other so-called “gnostic” gospels, which (judging by the content of the few that survived) far better encapsulate what I would consider “real Christianity”.
That said, the whole “No True Scotsman” fallacy really isn’t worth pursuing. It’s been this way since 325 CE, and there really is no painting a happy face on one of the most destructive and inhumane ideologies history has to offer. No matter what my opinion may be, you are correct in pointing out that the Paulity is the institution that is currently regarded as “Real Christianity”, as sick and anti-Christian as it may be.
Calling out the Catholic Church on this does not negate the fact that other institutions are also guilty.