“Every man calls barbarous anything he’s not accustomed to.” We are fortunate that this is not true for everyone, that there are people who look to other cultures with curiosity and make no assumption that their own is superior. The strangest people for me are those who assume their culture is best, but have endless complaints about their homeland anyway.
The demagogue always demonizes everyone unlike himself. But since such a type always thinks of himself as superior to all, there must be multiple levels of demons. The worst he might claim eat their cats and dogs. He assumes the lands of their birth are hellholes, which is defined as any place without a highly exclusive golf resort.
Unless we can learn from one another, we will all continue to be exploited and promised some kind of perfection close to home available to only a chosen few. I am unsure if solidarity with people unlike us will ultimately lead to a better world, but I am confident that appreciating and understanding as many cultures as you can will lead to a more joyful life.