I think this is just the nature of collective cultural shifts when priorities and what we believe about the world change. I've seen it on smaller scales in companies (when the business priorities have changed but the rank and file need to pretend otherwise) and apparently that happened in the USSR. I think the west is dealing with the cultural shift of the death of the post WW2 (western lead) globalist utopian vision for the world.
A lot of people are not on board, and it's now obvious it includes a lot of citizens of western countries who don't believe the deal is favorable to their interests.