BC, Quebec and the federal government have prevented further oil industry development while enjoying Alberta tax revenue from said oil industry. That's the basic gripe. And as far as I can tell, it's true.
The whole country is pro-oil now because we've realized we need to be stronger. This election cycle was drastically different compared to the last one which was completely about "climate change". Which was ridiculous imo.
Seperatism is bad, but being pro-Alberta is good. Being pro-Canadian oil and infrastructure development is good.