Not everyone is asking for raids to be removed or replaced, just the assets repurposed to provide content to more than one type of playstyle.
The few extremely lucky people who managed to find a golden needle in the haystack of a good guild always seem to assume it's like that for everyone. It is not. Raiding guilds, from my experience, are full of some of the most toxic people I would never under any circumstances associate with were it not to accomplish a goal -- and sharing a common goal does not a positive social interaction make. Some of my worst memories of WoW are from raiding in vanilla and BC. It took until Wrath to find a guild that raided during a schedule I could meet and wasn't full of jerks. Sadly, it fell apart with the disaster that was Cataclysm (no pun intended) and I couldn't bring myself to go through another 8 years of kissing frogs to find another guild that didn't suck. It's not like raiding at its core is a fun activity anyway, it's just that the right people make it a more bearable experience. This is also why I don't do LFR. I don't care how easy it is, raiding in any form is simply not an enjoyable investment of my time.
Clearly they don't know what content pays off judging by BfA. At this point, many are playing other MMOs if they haven't quit the genre entirely.