One thing I often consider is how much of history is an inevitable result of communication and globalization. (not necessarily "globalism") Yes there are malignant entities that push at certain vulnerabilities in our culture and try to take control through those, and they were largely responsible for the "nation of immigrants" meme, but how much of that was simply accelerating an inevitability that has been coming since our founding and interaction with the rest of the world?

In other words, slavery, the civil war and its results, mass immigration, feminism, and the Kalergi Plan all had negative effects on world culture, but we would have faced these at some point as the world got smaller. If the United States and European countries were still 90% White, you'd still have subversive forces combined with well meaning do-gooders pushing a neo-Liberal philosophy and globalist agenda and pushing for more immigration, and we'd have to deal with the problem at one point or another. It's part of the growing pains of everyone living on one planet with nowhere to escape. Maybe it's better that we are experiencing and documenting these negative effects now for posterity. Our great-great-great grandchildren might actually have the resolve to fix things.

(Sorry about the tangent. Other comments gave better direct answers.)