Well the only other solution I got, if the notion is that there's not going to be enough jobs for everyone to do once AI kicks in properly, is Universal Basic Income - and I can't imagine that going down well with most because it would require massive taxation to pay for it, and is an uber-socialist concept.
My point is just that the demographic time bomb is a real and increasingly urgent problem for Europe - you can't look at the data and think any other way. Britain is actually less worse off than a lot of other European countries. We can agree that mass immigration is just a way of kicking that can further down the road, fine. But if you're not going to kick the can down the road, you have to deal with it now - and I've not seen any real suggestions from any major party about how to do that.....probably because none of the solutions would be popular. Sure, you could reform the welfare system to put more pressure on people to work - that might buy you a few years. Increasing productivity in the economy would do as well. But all of these are just sticking plasters as well - they just buy more time, they don't address the fact that (without immigration) the population is shrinking and ageing, and eventually won't be able to pay for itself.
It's one thing to complain about immigration being a bad solution to the problem, but ultimately someone has to come up with an alternative.....or we'll just go the same way that every other great civilization has gone when faced with similar demographic crises (e.g. Rome, Ancient Greece, Ming Dynasty etc. etc.) and ultimately collapse.......