The difference between what? The question was whether majors in the US mean the same thing as those things listed for the UK. I'm saying yes they do. The claim was never that other aspects of programs are identical in both countries.
Well, there is no equivalent of majors in the UK, so "majors in the US" can't "mean the same thing as those things listed for the UK".
There are no majors in the UK, and no equivalents of the major/minor dichotomy.
There is just a straight degree in X, studying topics about X. You don't get to decide your major later on, and you don't get to throw in a minor to your degree as well. You study a specific thing from the first year.
I don't get why you keep bringing up minors because they add nothing to the discussion. The UK doesn't have minors, yes I get that, nobody said it does. I'm saying from all the descriptions here it appears what you call "degree" (EE, ME, etc.) is what we call "major [field of study]" in the US. Whereas in the US the term "degree" refers to BS/MS/PhD/etc. Just a terminology difference. Some colleges in some universities in the US require you to determine it upfront, some let you do that optionally, some actively prevent you. (e.g. some colleges let you take a year or more to decide whether your major is English or Biology...) Apparently in the UK they all require you to declare it upfront. Whatever the policy is, the timing of the decision/determination doesn't change what it is, and again, even if it did, most schools let you if not require you to declare your major (what you call "degrees") in the beginning.
