Emile. I agree.
But Catholic Knight is implying that his application of such principles is 1) obvious, 2) some sort of teaching, which 3) everyone should agree with.
Everyone agrees with the principle (ie a heretic loses membership) but the APPLICATION of this principle is anything but clear. If it was simple, then +Bellarmine and all the theologians wouldn’t have debated the issue for decades. …And they still never agreed. …So, no, there’s no consensus.