I disagree. Though I think righteous indignation is a real problem, it's also often used as a label that can be applied to any negative response to one's own op

I disagree. Though I think righteous indignation is a real problem, it's also often used as a label that can be applied to any negative response to one's own opinions - to paint any negativity at all as automatically unreasonable and unworthy of any credence. I think the trend of antagonistic-first approaches to other people is a much more worrying problem, and that highly antagonistic people are more likely to reach prematurely for the accusation of "righteous indignation" (not accusing you of that).