Unfortunately, you are wrong.
Every single citizen does NOT know that the census is done every decade. They should, but there is an appalling lack of knowledge about government and history in this country, in both adults and young people.
And, as far as I’m concerned, it’s fine for those people to duck the census. Frankly, and I know this sounds harsh, I don’t want them counted or represented.
It’s going to cost them a little more than 340 million because it’s going to take several “visits” to my home to realize they aren’t getting any more information out of me than the number of people living in my house.