Oddly, I have a family connection (now in her 60s) who worked with JD quite a lot back in the day. She was an actress, who had a few small breaks but was not terribly successful, & is now doing other things after abandoning acting 20 years ago.
She's always been adamant that JD was perfectly pleasant & professional over the years she worked with him. She'll concede that he wasn't the warmest or most likeable human being on the planet, but she reckons he was absolutely fine to work with.
But she will say this & then caveat it with 'mind you he was a nasty piece of work when he was pissed, & a bit handsy with younger women, & he could be bloody horrible to people a lot of the time, & I kept my distance from him off set because there'd always be ghastly stories about nights out, & he was a bit of a shit about me to other people after we stopped working together...'
I mean, this is someone who claims to have liked the bloke.
I'm not a fan of cancel culture, at all - but there does come a point when literally everyone is Sick Of Your Shit, I think.
His heyday was a bit before my time. Bits I've seen don't seem to be very funny, even if they weren't racist & sexist. Not edgy. Just beery bollocks with slightly better timing than your average pub bore.