

I agree that immigration is a big part of fixing this.
It isn’t. Not for long at least, as the last large countries are currently finishing their own demographic transition and starting to shrink themselves.
Is the world’s population still growing? Yes. But the growth rate peaked in the 60s, it’s cratering just as fast as it spiked, and by 2100 thereabouts there will be overall shrinkage.
Also before we get at the question whether Japan wants to have lots of immigration, what about the question whether those people wouldn’t rather build their own countries.
There’s nothing wrong with the world’s population shrinking – and also not with it growing, the earth is far from its carrying capacity. What’s frightening is very quick population growth or shrinkage because it’s an absolute breeding ground for all kinds of inequalities and societal unrest.
Plenty of parliamentarians getting kicked out of western parliaments for wearing t-shirts with slogans, holding up signs, suchlike. Suspensions generally are extraordinarily short and little more than “ok we’ll give you some time to change into respectable attire”. Also make a scene? Add a day. Make them watch from the visitor’s benches. Pay attention they don’t miss (relevant) votes.
That would have been the proper reaction: The proper way to handle ritual stunts (and they’re a ritual, also the t-shirt thing) is with ritual slaps on the wrist.
The NZ reaction? They’re suspending parliamentarians for unprecedented amounts of time, and on top of that while the budget is being passed. That is, they’re fucking with the distribution of votes, which is fucking with the foundations of democracy. That is, for a parliament, nothing less than a declaration of bankruptcy.