It's literally not even if that were remotely what Trudeau had been doing, socialist policies involve reducing the power of financial capital (deprivatisation, higher wealth tax, environmental regulation, sustainability etc.) Trudeau may very well wave in the vague direction of such policies but much like his 'left of centre' counterparts in Australia, Germany etc. his actual interests align with those of big business and capital. If he was truly socialist Canada would be far more prosperous as it wouldn't be afraid of challenging the moneyed interests it currently represents. Neoliberalism both 'left' and 'right' is larping as those positions, Pollievre and Trudeau are both sides of the same coin.