I think pulling the openly trans storyline is bad.
I think having the “openly” Christian character is totally fair and reasonable.
We shouldn’t be in the attitude of pushing out character identities, except whole cloth bigots. I’m not a Christian, but having openly Christian characters is fine with me.
I’ll add a caveat that it could even be a good thing if they actually bring up Christ’s words. You know: caring for the poor, giving shelter to aliens, loving your enemies. I think a lot of Christians would benefit by having the words of Christ more present in their lives.