I'd accept that argument if it wasn't for
this.
Also, it seems that if a policy, as you stated, is opposed by all conservatives, that a conservative would not enact it at any level. If, for example, I were to enact a progressive tax, but it was only for my state, would that be "conservative" simply because I'm doing it at the state level instead of the federal? I don't think it's a very conservative policy regardless of where it's done. I don't think the UHC at the state level has the same legal issues, as per the tenth amendment, but I certainly think that the legality of it does not make it any more conservative.
I don't think "winning the white house" means anything unless the person in the white house sees eye-to-eye with conservatives.