Sadly, I think you are giving most Liberal supporters here too much credit in understanding things from a policy and political spectrum perspective.I actually agree with you on this.
But alluding to my post above, when Carney starts making actual decisions he will immediately turn-off chunks of voters. If he governs from the middle, that will likely turn-off progressive voters including former NDP voters. If Carney stubbornly follows progressive Liberal leadership, he will disappoint moderate voters who had more faith in him than Poilievre.
Carney's electoral coalition held up from the obvious stress witnessed in January because of the outside threat presented by the Trump Administration. When he inevitably makes nice with the U.S. the focus will be on the economy and disparate views of governance with his coalition of voters.
They have been conditioned to think everything that's wrong with Canada over the past decade is somehow related to everything and everyone other than our leadership.
Giving them a convenient target (Trump) to focus on simply ends with that as far as what & who they want to vote for.
If you don't believe me, take this factual example...
The Liberals championed the carbon tax over the past 6 years so much so, that they increased it during the pandemic years when people were struggling, and would call anyone who challenged them on the purpose of this tax a "climate change denier".
Until of course their election poll numbers were dropping fast...so they scrapped it overnight.
Apparently tariffs and the threat of Trump were more important than the climate especially if an election was at stake.
The climate change champion (Trudeau) was replaced with the "save us from Trump" champion (carney) overnight and no regard for the previous decade of economic destruction and financial mismanagement.