Seems to be a chicken and egg type situation. If online gaming was always cross play for instance, and a lot of relationships were built with friends through online play (ignoring their console), if we all of a sudden took it away I would be pretty positive there would be huge backlash.https://www.gamesindustry.biz/articles/2018-04-12-do-gamers-really-care-about-cross-platform-play
Crossplay gamers don't care of it
It's just that every ecosystem is isolated from the other, so those relationships have never had the time to form, there's no value since I have not had the chance to make new friends on another platform. So in essence I haven't lost anything.