[HaroldBolt78]

That's not going to happen, though.

Population growth will continue whether you're having children or not. Western economies are Ponzi schemes and the ones needing your votes know it. You may not have any kids, but there are millions of Africans, Indians, and Chinese ready and willing to flood your country, and there are politicians only too eager to see them pouring across undefended borders. Some of these countries are seeing 9+ births per woman; there will be no shortage of new people to replace your non-existent grandchildren.

The solution would require some degree of ethnonationalism, else how do you argue against this policy? From a "we are all the same" viewpoint, it is unremarkable if Canada is 100% ethnically Indian and Chinese in 200 years; if Britain and Australia are African colonies; if America is... American. The very thought of racial discrimination in immigration, however, is totally unpalatable and unconscionable to most Westerners, and thus there is still no solution.

Your descendants' positions will be filled. There is no depopulation fantasy in the West's future. There can only be replacement.