The Green Card is work visa, not travel or tourist visa. 

Canadians can travel US without a green card because, may be, they have a greener card.;

Coinsreporter

TNStacker

This is almost one sided. Indians getting almost 1/3 of total green cards is truly incredible. 
I think it's mainly because of the huge demands of Indians in IT and Medical Services in US.

IamSINGLE

i think mexico should be top of the list 

160ed04091

carloschida

charts_and_numbers

https://www.visualcapitalist.com/wp-content/uploads/2024/07/USGreenCards_web.jpg

https://www.visualcapitalist.com/whos-receiving-u-s-green-cards-by-country-of-origin/