Its very possible the next candidate inherits the overall sentiment and is indeed a 'sacrificial lamb'. The anti-Trudeau sentiment is high, but if he steps back its an open question if the left wing/ABC crowd and centrists revisit their support for the liberal party.
IMO Chrystia Freeland would be a great pick for the country. She was firm and capable during the NAFTA/USMCA renegotiations, and seems to have stood up against political games from the current administration to her eventual detriment of losing her cabinet position.
Marc Carney certainly has appeal, but I can't help but see him as Ignatief 2.0 and that didn't go well with many Canadians.