The same vast majority of legal experts, lawmakers, and those knowledgeable on the subject also believe:

That Congress can delegate legislative power to Executive Branch agencies, in spite of the explicit statement at the beginning of Article I that all legislative power shall be vested in Congress, as long as Congress gives an "intelligible principle" to guide the Executive branch agency (Hampton Co. v. United States);

That Congress can regulate a farmer growing wheat for his own use, that never leaves his property, under the Commerce Clause (Wickard v. Filburn);

That seizing private homes, evicting their owners, and turning the property over to a private developer is a "public use" under the meaning of the Fifth Amendment (Kelo v. New London).

Given the above (and those are just a few examples I thought of off the top of my head), I do not accept that what such a "vast majority" believe is a good guide to what the Constitution actually says.