"at least 14.3 illegal aliens in the US in 2019"?
Try at least twice that.
There was more than one reason the Rodents didn't want the Citizenship question on the 2020 census.
One was the argument the Americans would use, that illegal aliens are criminals subject to deportation, not citizens and hence not eligible for Congressional representation, thus arguing that the apportionment of seats would be reserved to citizens only, which would greatly reduce the contingents of Rodent heavy states like CA and MN.
Another argument, one the Rodents would never utter, is one the Roman Senate used to reject some fool's idea that the slaves should wear distinctive clothing so people could see who the citizens were. The Romans did not want the slaves to see each other and realize how strong their numbers really were. The Rodents do not want the citizens of the US to realize how many Invaders are among them, which would feed the natural desire to move the criminals, if not back to where they came from, at least out into the oceans.
So the Border Patrol seized 892000 Invaders in 2019...the Border Patrol can only act within 100 miles of the border. Invaders thus tend to move away from the borders fairly quickly.