What would it take to make Oklahoma a blue state?

[Agonized-Statism]

As the intersection between the South and the Plains, Oklahoma is a very conservative voting bloc. To even make the state closer under current conditions, the Democrats would have to further develop their conservative wing (already happening IMO with Never Trumpers) while also muscling out environmentalists (pretty much impossible).

[Agonized-Statism]

Or climate change just recedes as a partisan issue after some late 2020's/early 2030's bipartisan deal.

That's probably where we're headed in the long run- when the crises reach a breaking point and action must be taken, there won't be any need for green parties- but are Republicans really ready for that in just ten years? Climate change is already evident and they're still staunchly anti-environmentalist. It'll take evidence as tangible as whole cities disappearing to get bipartisan climate action. Even then, the eco-fascist direction conservatism would presumably take would probably appeal to Oklahomans more.