First came Lord Parashuram, with his fierce combative attitude, who wrecked havoc on the persons involved in atrocities on weaker section and females, and even ruthlessly killed the offenders, but the situation was so grim, that all that was achieved was containment to a limited extend of these atrocities, as rulers and Dharmic gurus were also involved in this.
Most of the proofs had been eroded, but some exist. Even Parashuram father was humiliated; some say his head was cut off, taken away as trophy. And remember Parashuram father was a saint. On the other hand Parashuram father asked his sons to kill their mother. Yes the exploitation had religious sanctity.