Fair enough. I don’t see Mormons or Jehovah’s as ‘not Christians’ though, nor do they as they believe in Christ as the son of their God - which is really all it takes to be a Christian fundamentally. However I do agree that the practices of the Mormon and JW church are very manipulative and controlling to their followers in the way cults often are, and overall a negative impact to the lives of most of their followers (except those at the top).

When people brand certain Christians as not Christian because they don’t follow Christs teachings the way they believe they should be followed or by some other personal metric then it quickly becomes a ‘No True Scotsman’ situation.