Aid to Pakistan does not equal aid to the Taliban. First, many nations, including the U.S., at one time aided groups in Afghanistan in its war with the Soviet Union. According to your reasoning, the U.S. is not a "natural ally" of itself, and this fails reductio ad absurdum. That a nation at one time aided the Taliban does not mean that any aid to that nation equals aid to the Taliban.
Second, nations are a bit more complex than your world view seems to permit. Repeating myself here, but most involved in foreign policy and world politics look at how nations deal with one another not as "good guys" and "bad guys," but as very complex states with varying and changing national interests. What is key is weighing these various interests in making complex decisions, and reexamining them as events develop. With these principles in mind, saying "aid to Pakistan will always equal aid to the Taliban" is childish.
Third, I don't think it is really accurate to say that "India has never attacked Pakistan and has shown no intention of doing so except posturing in self defense." Again repeating myself here, there is a history to the struggle between and the birth of these two nations, side-by-side. This struggle also involved a colonial power in Great Britain. To view one or more of these as "all good" and the other as "all bad" does violence to the reality of these national struggles, and the real peoples involved.
Fourth, as explained, it is important to view the various institutions and interests of other states in foreign policy. To the extent India has a secular, multi-ethnic and diverse democracy with an independent judiciary, assuming your statements to be true, then this should be supported. What is dangerous in your oversimplified view is that supporting India in this requires, at the same time, the opposing Pakistan in all things, or referring to a whole people as "terrorist." This has been used by Neoconservatives to justify their launching unprovoked wars and to commit war crimes (remember the fabrications regarding "weapons of mass destruction"). Rather, the elements of Pakistan that include a secular and multi-ethnic democracy should be nurtured, not launched wars against.
I am glad that I had a chance to break down some of your posts here. All too often the sort of knee-jerk, black-and-white hysteria you propose is too loud for actual common sense reasoning and enlightened discussion to take place or be heard. All too often the "us" and "them" takes the place of a weighing of complex interests across different peoples and states, their interests, and a cool-headed and even-handed approach to international relations.
For that, if for nothing else, your posts may be worth something.