The ITEP estimates about population number isn't just wrong, it's hilariously inaccurate and many institutions refuse to give a proper estimation. We have easily far more than 10.9 million illegals and it is obviously been downplayed for a long time. We had 800k per year in just the 90s alone and that number grew substantially to more than 1 million and upwards to 1.4 million annually in the 2000s. Then there's the whole Biden administration letting the border wide open and having as many illegals enter as they possibly could. These are just the ones we know about, 20 million is likely an enormous underestimation as well and the number is potentially as much as 30 million, if not 40 million. This isn't even counting the illegals that are paid under the table so they don't report that information. So no, that per capita argument is absolute horseshit built on a foundation of intentionally obscuring the data.
Even if they were paying more in taxes than Americans do per capita, that would be a gigantic red flag indicating how much money they are making compared to the average American citizen despite having wealthy citizens skewing that number higher. They all belong in El Salvadorian prisons. Any other country, excluding the suicidal Eurotrash countries, would have ended their lives for the shit they've pulled.
Oh and for added fun, the authors on that ITEP article: Davis, Guzman, and Sifre. Two Jews and a Spic. You can't make this shit up.