And when after painstakingly listing the powers granted to the central government (such as provide post roads, coining money, etc.) then saying "To make all laws which shall be necessary and proper for carrying into execution the foregoing powers ", did you think the foregoing powers means all the ones specifically listed and any other power under the sun? I don't think so either. Maybe you should reconsider.
Of course I can. Gambling, for instance, seems to have little to do with "general welfare", thus, it is left up to the States.
And now, since I politely answered your challenge above in bold, perhaps you'll have the courtesy and intellectual honesty to answer my own challenge to you, which is to *specify* what power, if any at all, you ascribe to the legal, written, codified "general welfare" clause in our Constitution.
I'll be waiting...