Basically saying that 'Men shouldn't keep women as slaves' gets one a year in jail at the heart of Islam:
A Saudi man has been jailed for one year for calling for an end to the Muslim kingdom’s guardianship system that gives men wide controls over women, local media said Tuesday.
The man, who was also fined 30,000 riyals ($8,000) by a court in the eastern city of Dammam, was convicted of “inciting to end guardianship of women” in statements he posted on Twitter and in public posters, the Okaz daily said.
Slavery by another name:
Under the guardianship system a male family member, normally the father, husband or brother, must grant permission for a woman’s study, travel and other activities. Activists say that even female prisoners have to be received by the guardian upon their release, meaning that some have to languish in jail or a shelter beyond their sentences if the man does not want to accept them.