[from occupied ga]

or the birthrate will fall below replacement level.

This is bad because?

[hopespringseternal]

Growing populations produce growing economies. Collapsing populations produce collapsing economies. That is part of the reason for the amnesty giveaway.

The drawback to the amnesty giveaway is that you are importing people with no sense of civic duty and a vastly different culture.

[Restorer]

This is bad because?

A gradual decline in the birthrate to slightly below replacement level is not necessarily a bad thing. A sudden and precipitous drop to far below this point, as has happened in most European countries, is disastrous.

There are a bunch of problems. The most obvious will pop up 30 years from now, when a large number of retirees will be (not) supported by a much smaller and shrinking contingent of workers.

Combine this, in the case of Europe, with a large and growing group of unassimilated immigrants, and you are facing some major problems.

European countries, if viewed as organisms, are in the process of committing slow-motion suicide.

The US is in somewhat the same position, though to a lesser extent. Our white middle classes have a higher birth rate than Europeans, but what I think will save us is that we do a more effective job of assimilating immigrants. (Although our record here is not what it could or should be.)