If there is no right to privacy, there are no rights at all that the government can deign to give us or rescind from us.

Where does Alito say there is no right to privacy?

That RC doctrine makes no distinction between birth control and abortion cuts against the anti-Alito case, because he says that his opinion doesn't undercut Griswold.

Legislative law is superior to all other forms of law-giving, because the legislature can over-rule judge-made (common) law and constrain regulatory authority.

Non sequiturs and nonsense (examples?) don't vitiate a decision. You have to refute all his arguments to reject the conclusion. Pointing to a few arguments that don't impress you is essentially an ad hominem agument: He spouts nonsense, so nothing he says is right.