Fine. I'll bring some of my own statistics. There might be ten million undocumented immigrants living in the United States total. There are fewer than half a million illegal border crossings a year; if the expected lifespan following an illegal border crossing is, I don't know, forty years, then it's obvious that the overwhelming majority of illegal border crossings don't convert to undocumented immigrants. These numbers are easily available on the relevant Wikipedia page: https://en.wikipedia.org/wiki/Illegal_immigration_to_the_Uni..., which itself has extensive citations from a wide variety of sources. Saying that there are "tens of millions crossing the border" is clearly and blatantly incorrect.
And, of course, that's not even getting into the real meat of the issue, that's just sarcastically calling out the surface-level lies. No, what I really want to say about illegal immigration is that undocumented immigrants commit fewer crimes than either documented immigrants or outright citizens, that they pay more taxes than they cost in government spending, that they do not affect job access or pay of legal residents, that they prevent offshoring, and that they contribute to GDP via spending and labor. Undocumented immigrants are, as far as I can tell, purely positive contributors to America at every level I look at, for the people working alongside them and going to school with them all the way up to the grandest statistics. If we truly wanted a healthy economy - if we wanted more citizens to have better jobs, if we wanted more money for education and healthcare, if we wanted less crime and less exploitation of labor - we would legalize all of them and invite more in after them.