its easy to say that today, but look at those countries. Iraq was secular and relaxed, what happened when it was attacked? The same is true of Libya, Syria etc. These countries took that approach of "minding their own business" and when war came there was nobody to stand and fight. Resistance only came after humiliation and most of the fighting was amongst themselves not against occupiers.
You live in the UK, you will be familiar with the phenomena of people just "walking away" and ignoring when something bad happens to someone. It didn't used to be the way, people would get involved as they had community spirit, a sense of belonging, it was build around their national identity.
Our country is not a "natural" country, or one restricted to thousands of years of 1 ethnicity. Our binding identity is Islam. you find people have values and courage because of that. They will stick together more than they are divided by Islamic identity. We take away the concept of the ummah and we will be no different to Iraq, Syria, Libya and our end will be no different.
Those examples you have given are not relevant to Jammu and Kashmir. The above countries never actually had the mentality of minding their own business, on the contrary, it was their consistent efforts to interfere in others that resulted in them being overthrown or descend in to civil war.
I don't need to go on and mention what Libya, Syria and Iraq did or try to do to either countries in their neighbourhood or further afield.
And it's not like we have always stayed out of others' business, did we not go in with full fanfare in to Afghanistan? What did that minding others' business got us? A generation ruined with drugs, others in terrorism, sectarian violence that claimed thousands of lives, ethnic tensions in our largest city? An already struggling country flooded with millions more refugees?
I am sorry, but your examples actually support my point of view more than yours. It is far better to stand up for issues that affect you, rather trying to stand up for the world, because in the end you will realise that no amount of standing up for others will win you any goodwill amongst them. You are also in U.K, I am sure you have met many Afghans, because I have, I also lived amongst Afghans in Pakistan. You think they really care about Pakistan? Or will be willing to sacrifice themselves like we are willing to sacrifice ourselves for others?
I am not staying we should not raise our voice on what's going on Myanmar, and follow the correct international procedures, but we do not have a leg to stand on, neither politically nor diplomatically. Why? Because we are not a strong and united country ourselves, the moment a leader arises to work for Pakistan alone, he will be overthrown by an agent of one foreign power or another, a sympathiser of one religious group or another. This is the reality, you want us to go around chasing the wars of others, while we are continually losing our wars from within?
You are of course free to choose your own course, but I have rallied enough for Palestine already. I am tired of rallying for others while no one will rally for me and mine. When Kashmiris die, and the Indian leader is given an award and trade deals worth billions are signed by other Muslim countries, my blood boils. Why is the blood of my Kashmiri brother and sister cheaper than others?
No I am sorry, either the Ummah concept as we understand it doesn't exist, or it is dead if it ever existed. You can continue to believe in it.