What shows the hatred is the killing of tens of innocent people for no reason during a peaceful procession. What shows the hatred of those Taliban is the killings of thousands of Pakistani Muslims by the fanatic creed of Taliban kharijis.
Paki Taliban have the same creed as of Ahlus Sunnah, they are killing people for groups of them are being used by Indians and Americans.
Taliban are not killing shias across the country, but they are killing Ahlus Sunnah. That's why it doesn't make sense that they attacked shias in Karachi and killed ONLY 30 to 40 of them? Why didn't they attack shias in the rest of the country while they have the ability to attack GHQ even the CIA base in Afghanistan.
Trust me if Taliban go after shias, shias will forget about any kinds of processions and gatherings.
Do not mislead people because of your religious fanaticism.