Back around 2013, I read through three German sources (national statistics office, some university, and a foundation) where they all projected the 82-million population would hit 65-million by 2030.
Another group even went out and talked to migrants who’d come to Germany over the past three decades, and looked at their kids, and their repopulation trends. 2nd Generation Germans....also go to the two kids or less situation as well (taxation, high cost of living, and easy access to birth control). So there will continue to be lower German numbers....even with migrants coming in.
I did some spreadsheet, and used the current projections....coming to some point in roughly 800 years that they’d be down to the last 10,000 Germans in population. As much as people think the migration issue overcomes all other issues...they miss the point in that the trend doesn’t bottom out...it just continues on.
The population growth in Japan, China, even India is falling.
The fact is that there will be a bottoming out.