Who is “everyone”? In my experience the folks that say alliance RP is dead do not RP on alliance. It’s certainly not as busy as Horde, but there’s plenty to do and see. If you come on over, welcome. You may wish to try an alt for a week or two to see if it’s your speed.
I recommend joining the LFRP community on a WRA character once you do transfer when looking for walk up or RP or otherwise.
https://us.forums.blizzard.com/en/wow/t/ah-lfrp-the-in-game-community/696658/35