Several issues here:

1. Declaration of Independence versus Constitution. Not the same in terms of legal weight.

2. You're implicitly combining "representation" with "voting." The writers of the Declaration of Independence believed (even if we dislike it today) that those are separate. You can tell because all their wives and daughters were still prohibited from voting for generations.

3. If what you're suggesting applied, then wouldn't that mean everybody who hasn't registered to vote, or noncitizens and those under 18--are all exempt from sales tax and income tax?