There are 2 relevant truisms in Canadian Federal politics:

1. Governments defeat themselves.

2. When a governing Party thus becomes vulnerable, Canadians look for a 'big tent' alternative Party offering a comfortable mix of moderate new policies and continuity.

The Conservatives (under various names) during the 20th & 21st centuries have been only been able to win against a Liberal Government when both these points apply in their favour (case in point, the great difficulty they had under Harper winning and holding power even against a very weak & unpopular Liberal Party).

At best, the Conservatives will need 2 elections & capacity to reconnect with Red Tory & moderate centrist voting block that traditionally turn to them when the Liberals fall out of favour.  Mirroring 3 decades of GOP deviation is not the recipe for sucess.