I mean, they aren't wrong are they. The CoE, and various national Anglican churches in countries like the US and Canada, are dying, People are leaving, or barley showing up and not giving any cash, because they don't care that much. People with lukewarm commitment don't do the work to keep the institution running.
In terms of the Anglican Communion, the western churches have pretty forcefully tried to push the other, more conservative parts of the communion to accept theological changes they simply don't accept. That's not how apostolic churches work, normativly, it's almost meant to be the opposite of that - you can see how it's meant to work in the Eastern Orthodox churches still today, but essentially, any significant theological change would have to be agreed upon by a very strong majority, nearly all, bishops. Change comes when it's agreed upon as correct by all, that's what being in communion means. It means slow change, and sometimes none, but when it does happen it doesn't cause a massive schism.
Why wouldn't the other parts of the AC with really thriving churches be ticked off that a few Europeans with lukewarm parishes who think they are important are trying to push social ideas that come from western secular society?