R&B of the 90's was more Universal topic wise. The People that weren't black, Urban, etc... could relate and GET IN.
Nowadays you buy an R&B album and it's
"Nigga! Whhhyyyyy You Lyin.. wooo wooo. We Got that Hood LOoooveeee"
"Can weeeee smoke weeed and chillllll"
If R&B Singers stop trying to sing these hood rap lyrics with soul that would help too. Adele's album for example is very Universal anybody from Shaquita to Heather Anne can relate and get in. Same reason why I feel Brandy NSN is her most successful album. the content was universal and had push behind it.
This On top of touring together even more and having SUPPORT from their labels could help R&B.Yes, there is Universal R&B out there but there's not support or push behind it.