I think the Republican party wants people like you out. Rockefeller/Scranton Republicans are basically modern DLC Democrats. I get pressured into switching on "city" issues or for "balance", but I'm not taking the religious right with me. And one thing with Philadelphia, you'd be foolish not to be a Democrat. The primary basically determines the winner.
In 1964, Scranton was considered to be to the right of Rockefeller.
I actually think you could see the country swinging very far to the right. (I'm not overjoyed about the possibility.)