Blue is now pink. If you disagree with me, one of us is an idiot. If you agree, well... welcome to the club I guess.
Slightly more seriously, people argue over whether keep and bear arms actually means keep and bear arms. It doesn't mean the ones that can't read plain english are intelligent. It means they're stone stupid, dumb as dirt, 52 cars shy of a full deck. Whether you're a gun toting redneck awaiting the stupocalypse, or a hippy liberal that thinks people with guns are why crime exists, it still means the same damned thing.
Regulate means to make regular. It's the original definition, the only one the word had when they wrote it. To make regular the commerce between the states is not a deep, complex power. It's very simple.
The Feds are allowed to spank the shit out of any state or people that tries to block or tax imports and exports between them and their fellow states. That's it, original intent in it's entirety. Where intelligent people can possibly have a discussion is not much more open.
It's an intellectually dishonest argument that the interstate highway system should fall under the commerce clause. It clearly doesn't, it says regulate, not promote. The interstate highway system is beneficial, we need one. I suspect we'd probably get most of the way there at less expense if the states did their own damned highways, it makes them money after all, but it's at least something that can be argued as being positive for trade. It is not, however, constitutional.
Most of what they do isn't to promote, but restrict. They redefined regulate to fit their needs, and our bleeding moron population follows it up like the sheep they are.
Something arguable would be whether a state has the right to restrict government bids to in state residents and businesses. Does employment count as trade? Would a railroad charging for access across their tracks constitute their right to property or impeding trade? The Supreme Court would then rule on the gray area, solving the conundrum. As opposed to making shit up wholesale in direct conflict with the written word, like they usually do.
The cure to your disagreement with plain english is to amend it to say something else, not pretend it says something else. One makes us a nation of laws, the other a nation of liars.