the erosion of the NDP like this

The erosion was the vote collapse, not this.

In the federal Democratic Party down in the US you have a progressive wing of the democrats. How much have they been able to accomplish within the party?

Out of power? Fuck all. You might as well as what the harder right part of Poilievre's flank has accomplished.

Before that? Basically universal healthcare.

You can move the Liberals left by opposing them

And risk everything against an ascendant populist right? This feels close to "I'm fine no matter how the election goes, fuck the vulnerable and others who have to deal with the generational consequences, we need to say and a message!"