yes, we should keep quiet if china is willing to keep quiet on kashmir, but China has never called kashmir an "internal" affair of India, it always refers to kashmir as a regional "Indian AND Pakistani" issue. So, when I see India chickening out simply because Indians like you are scared of a war, I feel sad that we even bother fighting so many wars, getting independence and standing up to get freedom, all was a waste.
In fact, to give a tit-for-tat response, India should even have defence ties with Taiwan, like China has with Pakistan. But, Indians dont have the balls for that. We're too scared.
As far as having another war with China, trust me, China has a lot to lose today with foreign investment etc. if there is a war and India is no longer a roll-over anymore.