You have to do a lot when you get a green card to prove you won't be a burden on the US tax payer. It's a big part of the system and a big part of the anti-immigrant rhetoric

I think the point is that they are contributing to the US, and were the best option for their employer, and are supporting their communities, etc.

All things that we should be supporting if we are indeed wishing our nation to prosper.

A plurality of Americans don’t pay federal income taxes, so we’re essentially turning away someone who is building up our country.

Taxes are supposed to pay for public services. An efficient visa system is a public service. If you pay tons of taxes but don’t get a public service that’s personally very important to you, it’s natural to feel let down

A lot of the anti-immigrant rhetoric involves some version of the lie that immigrants don't pay taxes.