Rubio is correct, Conservatism is larger than the Republican Brand. Conservatism is something that used to be a platform of the Republican Party but was replaced with Neo-Conservatism.
The Republican Party would do well to understand what Neo-Conservatism is and be rid of it and to then re-embrace the platform of Conservatism.
Marco Rubio should also explain that he is Not Eligible to be President or VP because he is not a Natural Born Citizen. Both parent MUST be US Citizens when a child is born to transmit Natural Born Citizenship to that child.