Most Irish immigrants were forced by starvation to migrate. They weren’t exactly welcomed. Nor were the Chinese.
While that is entirely true but there was also outright enslavement of the Irish https://www.africaresource.com/rasta/sesostris-the-great-the-egyptian-hercules/the-irish-slave-trade-forgotten-white-slaves/
Irish all US immigrants were forced by starvation to migrate. They werent exactly welcomed. Nor were the Chinese.
My great grand parents from Scandinavia were also forced by starvation to migrate. There was not sufficient farm land to feed the population. Why else would they risk an ocean voyage in the hold of a ship where 10% died, to then settle on a barren prairie in a hand built sod house where no firewood was available for -20 degree winters. Most periods of mass migration to the US have historically been forced by starvation. Until now, that is. Now it's the opposite. The government is forcing the population to pay for welfare to the immigrants.
Usually, but not always, a representative of the crown had compiled that list with the help of the town council. They had 24 hours to report dockside with their meager belongings for transport to America.
Many Scotland and northern England (as well as Irish) villages were depopulated in said manner. Anyone returning from Transportation could be hanged. For this reason, there are a lot fewer blood relatives here after 1670 than before.
The gene pool here by 1670 is so small that almost anyone here by then is related.