I eat mayonnaise sandwiches all the time. Never touch that miracle whip stuff though. It’s quite nasty.
Also eat saltines and mayo from time to time.
Confirmation! 
I just realized that for some reason this has gone on two pages and it is in General Questions so obviously there is a factual answer here. You shouldn’t be posting anything opposite of that. Kraft has used advertising like “a sandwich isn’t a sandwich without the tangy zip of Miracle Whip” and there are truth in advertising laws… so obviously it is clear that Miracle Whip is a wonderful product that makes a sandwich a sandwich.
Clearly this settles it and there is no need for further debate.
Well, I’m pretty white. As in “NPR/liberal/northern state” white.
But the “mayo” sandwich - that baffles me. Never done in my family. A better “white” stereotype sandwich would be, IMO, for my location (WI) would be white bread, Oscar Mayer bologna, and Miracle Whip. Us white kids (mid-late 80s) ate that shit nearly daily.
Miracle Whip was a mainstay, both at home and at the Grandparents’ houses. I get why people hate it, and I’ve come to love proper mayonnaise, but I still enjoy Miracle Whip from time to time. Yeah, it’s an industrial copy of mayonnaise, but to me it’s not bad. A proper mayonnaise is still better, but I don’t hate Miracle Whip.
Now, Oscar Mayer bologna - That shit is toxic, and awful, and worthless. I grew to hate it even as a kid. I pretty much swore I was done with it by the time I was a teenager, and I’ve avoided it for about 20 years now.
/Oscar Mayer’s bacon is ok as an “everyday” bacon
//There was (and probably still is?) a huge Oscar Mayer factory in town (Madison). It made that whole side of town reek of its awful bologna. I used to wonder how anyone could live there.
I grew up a couple of decades thinking the white crap my mother was buying was mayonnaise - which is what she called it. Hated the stuff.
Accidentally got real mayo once and realized they are totally different. Mayo is NOT Miracle Whip and the two are NOWHERE NEAR the same flavor. And yet people still call Miracle Whip “mayo.”
On the front of the bottle it clearly says “Salad Dressing” whereas Mayo is actually the real thing.