We're not voting to change Canada. We're voting for speed bump in a progressive Canada.
Every election in Canadian history has been won by either the Libs or the Cons. And it's likely to stay that way, because the major parties adapt their platforms year by year to keep up with the prevailing political winds. That's why parties founded 150+ years ago are still able to get elected in 2021. Betting on the PPC being the first party ever to buck this trend is like betting on winning the lottery to provide for your retirement. As much as you want it to, it's not gonna happen. And you have to be realistic about that because there are consequences to pinning your hopes on a delusion.
So because elections are always won by one of the two major parties adapting to the prevailing political winds, any change you want to see (beyond what the CPC is offering in their 2021 platform) has to happen starting inside the CPC at their policy conventions and leadership elections (I assume you attend and vote in all those?).
And for you to get the change you want in those processes, you have to convince enough Conservative members to see things your way. I hope you comment at least as much on Facebook/Twitter etc trying to change minds as you do in this echo chamber talking with people who already agree with you. Otherwise you're not changing a thing. Throwing your vote away on a hopeless fringe party certainly isn't going to help.