Bret Stephens: Replacement theory isn’t a conspiracy, it’s the American way

In the broadest sense, what goes by the name “replacement theory” — the idea that American elites are conspiring to replace so-called real Americans with immigrants from poor countries — is merely a description of the American way, enshrined in tradition, codified by law, promoted by successive generations of American leaders from Washington and Lincoln to Kennedy and Reagan. There have been four, arguably five, great replacements in American history.