Once I determined that legislating morality is a losing endeavor, I hooked my wagon to libertarianism.
Immorality is best fought by churches and individuals and the powers of persuasion and prayer. Government is a very poor vehicle for promoting decency and reformation as the Chicago slimeballs who are attempting to rule over us prove every day.
There are 3 legs to conservatism: social, economic, defense.
While I think an argument can be made that the Republican Party might have to de-emphasize social conservative issues, that does NOT lead to your conclusion that libertarians provide a sound electoral choice for conservatives.
Many conservatives believe as I do, that the defense leg is the most important of the 3. Libertarians fall way short on defense. Defense of borders, defense of America and defense of our allies. Libertarians (many in a haze of pot smoke) somehow see the world as safe enough, with no need for defense. (Hey, man, who would want to hurt us if we just get in the groove and act peacefully, you know, man, like, wow, give peace a chance.)
Libertarians are dead wrong on defense.