I think conservatism will fail to the new generations and thus forever for a few reason. After Trumps imminent demise too boot.
1) Liberal media. Let's face it, you can't compete when 90% of what people see, hear and read supports the DNC platform and intentionally misinforms you on the other side (conservatism, libertarianism.)
2) Talk show hosts, IE de facto leaders of the GOP/Conservatism were too busy selling out. Rush, Hannity, Levin, Savage, etc, All these guys do is hawk shit on their shows, and sell out. All are millionaires. I think if they weren't so busy selling 'Pro flowers" and lifelock, to us they might have been able to stay on message. Plus they got conservatives ANGRY! Outraged! But too outraged to the point where they nominated a crazy man.
3) Govt corruption. Starting with Obama. Handing out Amnesty like candy, and allowing 11 million illegals to stay here. They will all vote Dem because of his "favor". While at the same time selling america's security down the river. Dems in congress block every border securty measure. They want illegals coming here and voting for them.