Tbh any immigration is a fucking nightmare.

Not really. It's a balancing game. Too much immigration causes wages to stagnate and housing prices to rise, but too little immigration is a drag on economic growth by starving expanding industries of labour supply, wages rise out of control, employers can no longer compete for labour, and then industries start to collapse.

Immigration can be calibrated to maximize the economic benefit. Unfortunately our governments thought their citizens were too dumb to understand this from an economic perspective and instead manufactured consent for mass immigration using some puerile bullshit about "diversity is strength". Then after a couple of generations of that, we end up with naive dimwits who actually believe the "diversity" rationale running the country, and now they're piling as many people into the country as they can just for " diversity's" sake, economics be damned.

The net result being skyrocketing housing costs + stagnating wages = record levels of personal debt and no end in sight.
And it's a bubble that's going to burst as soon those levels of personal debt start to default en masse, which is only a matter of time the way we're going.