However, when I pledge Allegiance to the US Flag, I don't pledge it to the flag it is to the US Constitution the basis for the flag.
You pledge allegiance to the Flag "and to the Republic for which it stands", you take an oath to the Constitution. Jake, there are those of us that have done/still do both.
If you don't pledge an allegiance to the Flag then you are not pledging an allegiance to "the Republic for which it stands". The words to the Pledge are pretty clear cut and have no other meanings.
Are you too good to pledge to the Flag? Apparently, at some point in your youth, you thought yourself too good to swear an actual oath to the Constitution.
If you don't think the Flag is something you should swear an allegiance to and the Constitution is too good for you to swear an oath, what is the point you are trying to make?