I do wonder if a Trump victory might change things. If Trudeau can paint Poilievre as being cut from the same cloth as Trump, he could curb Poilievre's popularity. It's a huge hail Mary at this point, but it's the only way to move the needle at this point, I think.
I've seen maybe 4 minutes of Poilievre and he doesn't come across very Trumpy. A bit snarky, but he doesn't seem as dumb as Trump, his thoughts are more focused. It's very hard to listen to Trump speak because he's all over the place (probably why the dummies like him, they just wait to hear the code words then hoot and holler or boo and hiss depending on what code word the lead chimp said). And snark is a good balance to whatever it is Trudeau does.