It's the first you've heard of it then glad to help educate you 😜
There's no doubt that the original architects of the party very much felt that the west was being excluded. But that's not why the public flocked to them.
And yeah, the PC party did worse than the reform who had no support outside of western Canada. And reduced them to 4 seats. And that would just keep getting worse for the PC until the reform took them over. You're kind of making my point for me here . Conservative voters turned their back on the PC and it no longer exists. And conservative voters did not wait 15 or 20 years before taking that party out permanently.
As to your claim that a core 20 to 30% that the Liberals and Conservatives have will refuse to vote for anyone else, while that may be true, the difference is that the liberals will still keep voting Liberal, whereas the Conservatives will not vote at all. Even if they know that it means that a party they dislike will get in and sees power they will refuse to vote for the corrupt party or they will break down and vote for someone else.
For example when the PC party was wiped out as you correctly note only a tiny percentage of the party was still willing to vote PC. And that was so scattered as to be meaningless.
On the other hand despite the snc leveling scandals the we scandals the agacon scandals and all of the other scandals which seem to show up about once every two or three months the core liberal supporters kept showing up and voting liberal. The CPC actually won more of the popular vote and two out of the three last elections but the core liberal support kept the liberals empowered despite obvious corruption
There's no comparing them. Conservative and NDP voters will trash their party completely and have done so many times if they detect corruption. Liberal voters do not