I guess my answer is that if the testimony of one is not that they are saved by grace, then why judge them with condemnation when your judgement testifies to an absence of grace? James 2:13 For judgement is without mercy to one who has shown no mercy. Mercy triumphs over judgement.
God is not willing that any should perish but that all should come to repentance. Jesus said of them He would have gathered them as hen would her chicks but they would not.
Mt 23:37 O Jerusalem, Jerusalem, thou that killest the prophets, and stonest them which are sent unto thee, how often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not!
Joh 3:19 And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil.
For the cause of Christ
Roger