How do rightoids not realize that their countries economy is dependent on immigration?

They want to ban all immigration but there aren't enough people being born in their nation states to sustain continuous growth. Meanwhile these same people also want their quality of life to constantly improve but that's only possible as long as the total population increases which helps to increase total production and consumption and grow the market and labor pool.

The western economic model, to succeed, requires either, a naturally growing population ( which it does not have ), or a continuous immigrant inflow higher than the total natural population loss rate.

How have the rightoids not learned from the time when they banned the immigrants and suddenly there was nobody around to do the cheap work on the farms.

They aren't just stealing your jobs, they are doing the jobs you wouldn't have willingly done anyways at the prices those jobs pay, because those jobs only exist at those low prices.

The US is going to keep bringing in more and more immigrants over time, So is Europe. This is because the only alternate option is to slowly fall into continual decline like Japan.

Most of the anti immigrant crowd doesn't understand the privileges they get only because they are currently number one in the rankings for largest economy. The moment they fall they begin to lose those privileges.

Already, more than 1% of Germany's population worth of immigrants move there every year, and their population growth is still stagnant.

The US similarly needs more than 1.5 million people moving in every year to sustain itself.

Conclusion:

The west needs millions of immigrants every year.

One day the west will become the highest population region of the world.