Again I ask; where? This must make over a half dozen times on this thread that you've been asked to document that claim. It's telling how assiduously you avoid doing so.
I cited the constitution. I'll cite it again for you.
Article I, Section 2 of the U.S. Constitution reads, "The House of Representatives shall be composed of members chosen every second year by the people of the several states ..."
I will ask you simply, who are "the people" they're talking about? All individuals? Or will you finally admit that Article I, Section 2 is referring to a particular group of individuals -- only those allowed to vote?
Come on already. This isn't rocket science.