Back in the day of Rome, there was a split with some Christians who rejected those who denied Christ, but still maintained that they were Christians.
I would imagine that there is the same kind of split in Christian circles today, too ... on this issue.
I would maintain that once someone is truly saved and “in Christ” that they cannot be “unsaved”.
“I would maintain that once someone is truly saved and “in Christ” that they cannot be “unsaved”.”
That may be so, but only Christ knows if they were ever truly saved in the first place.