This is just reckless without any responsibility. A number of people, especially in tech sector, legally stay in US while their GC is being processed. They have kids born in the USA. If such people were to leave USA to seek green card: - the kids must first get visas to their parent's countries - once reaching the other country, consular offices now have multi year wait lines for getting an appointment with a office…
This is wrong. There is no minimum time in the country for a green card. You are thinking of citizenship. That is different.