> People have been raising flags about this for literally decades now and the other shoe has yet to drop in any kind of meaningful way.

Besides all the hypothetical horror scenarios I have one argument that at least for me is strong: I just don't want them to track me. In some cases (like posting this comment) I accept the tradeoff, but I want to be able to choose.

These sort of evasive techniques are about allowing people who want to make that choice for themselves to also have a choice of participating in modern life.