The problem I have seen in the CPC since Harper's departure is that there isn't a seat at the table for anyone close to the centre; O'Toole, Rempel-Garner, I'm sure Charest and Brown will soon be added to this list.
PP is the frontrunner because he is the fringe candidate; the CPC party sages are putting their bets that the fringe of Canadian voters are far more right leaning than they would ever let on in public.
They're wrong, and our past 8 years of Liberal government have demonstrated as such.
The majority of Canadians have Centrist or Left of Centre ideals at heart on most social issues. Canadian society is far more accepting of alternative lifestyles, non secular ideals, and is far less "Old Stock" than it was 20 years ago.
I had a colleague say to me that it doesn't matter how "fiscally conservative" a person can be; it will always be the cost of accepting social conservatism by voting CPC. For people in the LGBTQ2IA+ community, it's a non-starter. For victim's of religious trauma and conversion therapy, it's a non-starter. For most women and young voters, it's a non-starter. For most indigenous groups, it's a non-starter. Same with BIPOC Canadians (except the South East/West Asian populations in urban centres... that one is kind of a wildcard.) They would rather hold their nose and vote Liberal again before heading down that road.
The CPC needs Red Tories more than it needs to pull in more PPC or "Northern Republican" voters. The sooner they realize this, the sooner they get a chance to govern. Sticking to the issues of fiscal mismanagement, government corruption, and developing our industries and communities will get them there.
Keeping the lunatics in the asylum should be the primary campaign plan moving forward. Punting people like Rempel-Garner is not a good start.