You're quite literally the only person in the entire workshop whose managed to make a fully functional AND high quality DEI Roman-reskin without it breaking or getting abandoned at some point. To lose this mod would be a critical blow to the many, as tons of people have started playing DEI again specifically because of this mod and it's visual appeal. Myself included.
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I can understand why it would be obscenely frustrating, none of us blame you for being angry about it, but you & your humble team are extremely skilled mod-authors who have loads of potential. We would be heartbroken to see it go to waste because of a few morons with no life.

Tl;dr: You have evidence, he doesn't. Majority of the community will support YOU. Not him. The few that openly defend him are in the minority and really aren't worth taking seriously anyway