I don't know about "genocide"; the current President is Shia and they're ingrained in the very fabric on Pakistan's society. There really can't be any genocide of Shia's frankly speaking, they make up a well 20% of our society and are patriotic Pakistanis.
About the killings:
It's the mainly the Hazara's which are getting killed in the Balochistan by the rebel BLA, who are separatists. They basically kill anyone who doesn't comply with their wish to separate from Pakistan.
Hazara's, who happen to be mainly Shia, are patriotic Pakistanis while the BLA, who mainly happen to be Sunni, kill off them Hazara, as well as other Pakistan-Patriotic Baloch.
The main difference is that the killings of Baloch by the BLA doesn't really make it to the news as much as does the killings of the Hazara.
Other than that; sectarian violence is quite limited in other provinces, with the occasional case here and there.
It's not backed by the Saudis; I know you guys hate them for being Sunnis and all, but it's the fact. They have better things to do, and being one of the closest allies of Pakistan, I very much doubt they would fund terrorists to kill of 20% of Pakistan's popualation. You guys need to stop with the blaming.