Fixed it for you.
These Reagan democrats were just as pro life as Reagan and recognized that their party had abandoned the unborn. They were, however, liberal democrats but Reagan's personal likability allowed them to realize they had a lot in common with him. It was part of Reagan's big tent ideology -- you did not have to compromise your principles to get the people of the other party who agree with you to join you.
Reagan was right, but unfortunately, today the GOPe wants you believe that big tent means abandoning your beliefs to let everyone in, whether they agree with your principles or not. Reagan was not part of this big mushy middle.