We do have a right to privacy- so the government is not allowed to tell you what kind of sex you can have in private, and can't tell you that you can't use birth control.
That of course has nothing to do with requiring a business to follow business law- and not discriminate against Jews, Christians, Veterans, the handicapped, gays, women, Mexicans, blacks, Muslims.....
Every heard of a 1040, sploogy?
How does that fit with a right to "privacy?" What details of life are NOT demanded by the state?
Further, here is the 4th Amendment - which I doubt you've ever seen before, care to point out where it mentions privacy?
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
In fact, those things it DOES explicitly mention are routinely violated by the government. There is no mention of abortion, which is the ONLY "privacy" to lefitsts. But it DOES speak of papers and effects, which you MUST reveal to the IRS or go to prison.
So let's talk about civil rights, Comrade?