And if the party's ideology is in tune with the center, then how can any candidate from that party even possibly be leading rather than just manage the status quo once elected. Now if the status quo is great, then we may not want to expend the effort to make things better. But i assure you that things can be better. And once the premise that things can be better, then you have to ask how can you enact policies to change and make things better. And as soon as you do so, then you are proposing non-centrist ideas.
The goal then of any party is to suggest actionable plan that appeals to the center, to be adopted by the center, to make the party ideals mainstream. When this occur, it is not the party becoming more mainstream, it is actually the center being shifted toward the party's ideology. Thus in order for a party to be successful, it must have non-mainstream non-centrist ideas. However, if the party actionable plan is too extreme, then it will not appeal to the center. Society adopt changes very slowly.
In a previous post i suggested some principles the Republican party should adhere to, cultivate, and build upon.
Strong National Defense
Small Government in Society
Conservative Fiscal Policy
Fair Economic Opportunity
Culture of Personal Responsibility
Traditional Family Value
These may not be new ideas, but they are great ideas have made our nation great and should continue to guide our nation forward. These ideas continue to appeal and resonate with most Americans. Thus the solution for the Republican party to win elections is not to become more centrist. Rather, it is for the Republicans to offer and deliver meaningful changes and improvement to America that remain congruous to these principles.