I hear you. issue is American reliability and their dependence on India to counter China. this issue makes the possibility of military equipment trade with Pakistan against American strategic planning since Pakistan will use these weapons against India.
Americans are very stupid at times which leads them to their current politics.
But deep down they have very high level of intellectual think tank resources that silently plan decades ahead and make decisions that act as levers of power.
Having said that, these intelligent Americans/Think Tanks know that America arming India to counter China will do two things:
1-Piss Pakistan off completely
2-Give leverage to China to openly support Pakistan more
The problem with No. 1 is that Americans can't really abandon Pakistan and its deep rooted geo-strategic importance in the region. They just can't. It would be the stupidest move of their foreign relations. Even bigger than not being able to see Iranian revolution coming
The problem with No.2 is that open financing of arms is only for Israel lobby. So whatever Americans agree to arm India with (Be it Stealth jets or whatever) it will come at cost to India. But in case of China-Pakistan, finances will not be an issue. China's surging economy can easily finance Pakistani arms and keep Indians and Americans at bay.
Most people don't realize what China was in 2010. What it is today. and going by that what it will be in next decade. China will surpass almost all technological advantages USA had in the next decade, and that is 100% guaranteed.
Europe toed the line on Trade. Canada is kneeling down. UK did. South Americans will do too. Indians are kneeling as well. Look at China. Americans went running to them to beg a deal on rare earths.
Right now China is playing a balancing act. Not arm Pakistan too much because you dont know then which way things will go. So China still wants control.
But anyone thinking that Americans can counter China with India, is living and daydreaming in a fools land. Most of such people are Indians. The same types who claim SU30MKI superior to F-22 raptors and Rafales superior to J-20s.