Israel doesn't respect our holy sites. They break into Al Aqsa mosque occasionally when they feel like it, and the drilling under Al Aqsa mosque could possible take the mosque down and cause it to collapse.
Pakistanis and Iranians have made Israel an enemy of them simply because they feel for their Palestinian brothers.
Turkey actually recognized Israel right away, it was the first Muslim-majority country to recognize it. They've had pretty strong ties before the Israeli raid on Mavi Marmara.
Just because you'd met some nice Israeli members and some aggressive Arab members doesn't mean that you support Israel. I've had problems with people of my own country, Egyptians, and I've met nice American members on the internet with whom I have a good friendship. Does that mean I'll support America against my own country?
No, actually no one believes that Pakistan must support them. No one believes that they have a God given right to support them.
Also, do you really think that if you have good relations with Israel they'll give you the goodies?! You have had good relations with America, what did you get? Pressure and drone strikes, killing hundreds of innocent civilians.