I'd posit that a point you're missing under "We need" is "to tax the rich more to pay for the services and supports needed to manage the number of immigrants we plan to build.

You're right about immigration, but the problem, like anything our governments (LPC or CPC) do is that they'll do half the solution; the easy, cheap part (immigration, decriminalizing drugs, setting healthcare and education standards) but not the hard and expensive part (building infrastructure, providing treatment and housing-first at scale, actually spending money on teachers, doctors and/or nurses), and the reason they do the cheap part is they're ideologically unable to ask the rich to make do with less.