On "rape in marriage" you are clearly wrong. Freedom of contract is morally superior, the traditional contract for the past two thousand years being that a man and a woman each gave their consent to sex once and forever:
The concept of "rape" in marriage defines marriage, as it was originally understood out of existence, marriage as it was originally understood being the power to bind our future selves to stick it out
According to the New Testament:
"let every man have his own wife, and let every woman have her own husband.
Let the husband render unto the wife due benevolence: and likewise also the wife unto the husband.
The wife hath not power of her own body, but the husband: and likewise also the husband hath not power of his own body, but the wife.
Defraud ye not one the other, except it be with consent for a time,"
If consent to sex is given moment to moment, rather than once and forever, then marriage cannot be a durable contract: Consent to marriage then has to be moment to moment, which is to say routine hooking up, rather than marriage, thus producing the present situation where men are reluctant to invest in children and posterity, and where eighty percent of fertile age women have sex with twenty percent of men.
The concept of "rape" in marriage defines women as incapable of contract. Like so much of feminism, it infantilizes women in the guise of empowering them.
Saint Paul phrased it more delicately than I phrase it, or people in the eighteenth century phrased it, but what he meant, and what he rather delicately implied, and what people in the eighteenth century said plainly enough, is that if a fertile age wife is not getting done by her husband, she will be getting done by someone else pretty soon, and if a fertile age wife knocks her husband back, she is probably thinking about getting done by someone higher status than her husband, and pretty soon will be so. If she violates the marital contract by not servicing her husband, she is about to violate the marital contract a lot more drastically.