The video was lame, Basically, California has a bunch of illegals and thereby they get more Congressional representatives and more electoral college votes. Well, Texas and Florida both have a bunch of illegal immigrants too. Texas, 1.6 million illegal immigrants, 6% of the population. Which is possibly a higher percentage than California. Nevada is looking at an illegal immigration population that is over 7% of their total population.
But you are looking for reasons. First, the US Census has always counted everyone, since the very first one in 1790. Sure, I know, the whole 3/5th compromise thing. But those slaves were counted. Women were counted and yet they could not vote. Children are counted, they cannot vote.
But second, believe it or not, a representative's job is to represent all the people in the district. Not just the citizens, not just the people that voted for him. And surprisingly enough, not just the people that stroked his or her's campaign a big ass check. Although it sure looks like that most of the time, on both sides of the aisle.
And a note here, no Senators are not suppose to represent the interest of their respective state. They are supposed to be the learned, the wise, and should be chosen on their ability to look at the big picture, not be front side focused on their state. Hell, it was why the founders set it up so that they were appointed, not elected. But like many things, that kind of went off the rails within the first one hundred years.
But perhaps most important of all, there is this thing called the Constitution, and it has amendments, like the 14th.
Representatives shall be apportioned among the several States according to their respective numbers, counting the whole number of persons in each State, excluding Indians not taxed.
Are illegal immigrants not whole? Are they not persons? Are they not taxed? I mean what is your argument here?