You’re right; what I should have said was “everyone who disagrees with me is operating from a morally inferior value system!” but that’s not as pithy.
In case you’d prefer something more prosaic: there is a difference between stating a contrary position and implying that other people’s positions indicate a defective worldview from which they should seek to free themselves. Or, more simply, there’s a difference between attacking a point and attacking a person.
I would also add that your last point is a bit of a straw man. I can scarcely clarify except by restating my point: spamming a thread with kneejerk retorts instead of taking the time to reflect on someone’s criticism is a dialectical red flag.