We didn't destroy their country.
Their own war lords did, and in fact, we bailed their arses on a regular basis after the Soviet invasion.
I know you will talk about taliban. But fact is most Indians don't know too much about the taliabn, and it is convenient for them to blame Pakistan outright and Pakistan only. Do you know who controlled Kabul before 1994 taliban advance? Do you folks know came before the Kandahar student movement?
But, yeah, they do hate us. Some of these Afghans, I don't mind, others are namak haram.