How is that quantifying impact on the U.S. innovation? It shows people being moved out of a bunch of countries and to another but I see no demonstration of that positive impact.

The graph is not just people, but specifically inventors.

The US has a giant net influx of inventors (some of whom arrive on a H1B), which presumably creates wealth, jobs, etc.

>some of whom arrive on a H1B

Isn't this the key part, isn't that graph rather irrelevant to the H1B discussion if it doesn't specifically point out the H1B numbers?

As an aside the H1B is an abusive system that depresses technical wages and oppresses the visa holders who can lose their residency on the whims of large corporations.

How many of those really arrive on H1B, and how many of those have no other options? I was told that even I could apply for some "talent visa" (the one that fashion models often use) because I competed in the math olympiad... the bar seems to be set incredibly low (speaking of myself, not the models).

I would recommend googling the process and try it out. Just try to find out if it is actually easy before commenting.