Millennials Killing Mayonnaise

Those who like miracle whip while they hate mayo and vice versa...I don't get it. It's essentially the same thing. Miracle whip has a lower oil content and a few extra spices, that's it. Strongly preferring one over the other, OK, I get that. But loving one while absolutely detesting the other? I don't buy it. It's just one of those things that some people like to have strong opinions about for the sake of it. The two aren't that much different.