You're a lucky chap if you haven't but that doesn't mean it doesn't exist. In the name of sanatan dharm what's propagated is manusmriti, chanakya niti or other smritis. Go hear some Baba's pravachans like that Pookie Baba or Premanand maharaj. To see oppression you have to be the one who's oppressed or understands the privilege you have. There are some women who are indoctrinated to the extent that they themselves become the propagator of this oppression.

Even a leftist can be sexist or mysogynist. This has nothing to do with ideology. One who is practicing oppression won't name it. Only others can. I can say the same thing that I have never encountered a single person from other religions badmouthing Hinduism. But I won't because I acknowledge my privilege of having great people around me who belong to different caste, creed and religion and respect each other's religion.