Class warfare is an appealing position for many people. It is always easier to say tax the rich. The 16th Amendment was passed on this logic until the middle class found out that it was the 'rich' class.
No pandering is needed. The GOP needs to stay on the message of liberty. Many will reject it because they desire servitude to government thinking they will achieve economic security. They will achieve neither. See USSR, China, Cuba, etc. where a minor infraction resulted in your ID being taken which meant no abiilty to buy food or work. Yes, a very humane society in those ole communist countries which is the purest form of socialism.