There have been horrific attacks on India and on Shias in Pakistan.
They were targetted for not being Sunni Muslims.
If that is why they hate us, appeasing them will not make them like us.
They will see it as contemptible weakness and a sure sign of their ultimate victory.

This makes no sense whatever. Their motivations for their actions towards India and the Shia in Pakistan are different than their motivations for their actions towards the US. Trying to link their motivations toward us to their motivations towards India and the Shia in Pakistan is a non-sequitur. It makes no sense, and the presence of their animus towards India and the Shia in Pakistan says nothing whatever about the nature of or reason for their animus towards the US.

And who cares whether or not they see anything as their ultimate victory? Are you willing to send good men and women to die just so you won't get your ego bruised?