I appreciate your willing to review cited material.
I can't find where you got that figure from.
I don't think you saw what the links referred to as "welfare."
From the link you cited:
Social Security, Unemployment, and Labor are welfare programs. 40% of the 2021 Budget.
So is Medicare, and Medicaid. 23% of the 2021 Budget
The Agriculture Budget includes money for
SNAP
https://usdasearch.usda.gov/search?utf8=✓&affiliate=usda&query=SNAP&commit=Search
The Housing and Human Development Budget includes money for
TANF
www.hhs.gov
As I listed above, Welfare Programs fall under several Departments and Agencies. As shown in the 2021 budget below, it amounts to about 70% of the 2021 Budget.
That is not the issue. The issue was about immigration and how it would affect existing citizens in both their pocketbooks and job opportunities. Not a Straw Man "how it helps society."
The argument that immigration places additional demand on our welfare programs is misleading because our welfare programs contribute to our economy, pump money into the economy, raise the GDP, create demand for products and services, and create jobs. Government assistance programs dovetail directly into capitalism and help build businesses, jobs, incomes, security, and a stronger America.
And that only makes sense because that is exactly what immigration does, and always has done.
America before immigration was not even a nation. Just a collection of indigenous tribes.
The influx of Europeans, combined with the existing natives, built our country. For descendants of those Europeans to somehow claim today that they have any more right to this land than any other human is actually kind of absurd. And it doesn't even make sense. Right through might is about it.
Consider the big picture, in the macroscopic view, over a great period of time:
China has about the same land area as the USA, with 4 times as many humans. Their economy trails ours, but just barely, and quickly catching up. China became industrialized and high tech. They are surpassing us. Ultimately, the only way we will be able to compete is to expand our population in a productive way. We have people yearning to come here and build American back better, but Republicans can't see the potential, and are too hung up on being stingy.
The real reason Republicans oppose immigration is because immigrants lean more Democratic. Boom. Really, that's it, right there in a nutshell. All the other objections are small potatoes, manufactured reasons, because Republicans don't want to admit the real reason being that they would lose power.
America needs to shove these ugly Republican xenophobic views out of the way and charge ahead to build our fantastic amazing future. A nation truly of the people, by the people, and for the people. Not the Republican vision which amounts to a nation of the rich, by the rich, and for the rich.
Republicans, you are standing in the way of progress. Progressives, I salute you. Destiny is ours. Republicans are doing everything they can to impede our rightful future, but ultimately we the people will prevail.