“It is foolish to conclude however, based on such appearances, that those are the happy people in the world, who have the truth, who should be emulated.”
Who said anything about emulating? Nobody is trying to convert you here. If every time you see a happy Chassidishe person you think it’s part of some marketing ploy to get you to be mevatel your own mesorah, then you have some weird personal quirks to work out.