Richard Nixon nominated an unbelievable four justices in his first term, and all but one of them (William H. Rehnquist), turned out to be a liberal judicial activist. Of those four nominees, only Rehnquist didn't accept the right to privacy that Bill Douglas invented in the "penumbras, formed by emanations" of the 4th, 5th, 6th and 9th amendments.
All of Nixon's other nominees (Warren Burger, Lewis, Powell, and Harry Blackmun) not only accepted this invented right, but found it broad enough to include abortion in Roe.
Guess who wrote the opinion in Roe? It wasn't Douglas. It was the Nixon, Republican-appointed, "living constitutionalist" Harry Blackmun. Gerald Ford even nominated John Paul Stevens over then Solicitor General Robert Bork.
It wasn't really until George W. Bush that the vetting process and growth of the conservative legal movement produced a deep enough bench of nominees (like John G. Roberts and Samuel Alito) who would give consistently conservative results. I suppose, even if Brett Kavanaugh believes there is a "right to privacy" in the constitution , that we owe him for his work as Senior Associate Counsel for promoting Samuel Alito and John G. Roberts. A man who called Douglas' framework in Griswold as the "so-called" right to privacy now leads the most powerful judicial body in the world. Conservatives have Brett Kavanaugh to thank for it (even if he doesn't share John Roberts views on the matter).