Maybe not so terribly politically incorrect...
As I understand it, processed cheese is (or used to be) largely composed of dried skim milk powder with enough cheese added to give it some flavor. That's at least more protein and less fat than the real thing. Maybe it's all petrochemicals these days, I don't get it much any more. I hated cheese as a kid until I tried some Velveeta, and I liked that (maybe because it was heavily salted.)
I gradually got into more kinds of real cheese, but I'm still sort of grateful to Velveeta for getting me started. I'm appalled at seeing mountains of it stacked up in supermarket aisles, though. I wouldn't touch any "diary" product that doesn't need to be refrigerated. Same goes for sausages.
Speaking of cheese... where can I look for fresh Bel Paese. We got some at a gourmet store in the S. F. Bay area, and I haven't been able to find it anywhere in our travels since. I've been told that it spoils quickly once the wheel is cut and re-wrapped. I just realized how much I like it and I'm quite frustrated.