AOG - you are old enough - as you never tire of telling us - to know that any sports fan abroad instantly becomes an OTT patriot when the attend a game. That applies to Brits in Australia when the Ashes are on, and again, you know that full well.
Peope who are either natives, or have roots in the Indian sub-continent are seriously passionate about cricket, and will travel from far and wide to watch their team, as opposed to a lot of Brit fans who live down the road from the ground, and will still watch it on TV.
This is the reason why there will be serious numbers of Indian / Pakistan supporters at the game, be they native, or British born.
The game will be played to win, in the traditional sportsmanship that cricket enjoys.
Now why can't you simply accept that as a fact, and appreciate it, instead of your usual dark mutterings about making an issue of ethnicity over it.
Of course, that would render your post redundant, and on reflection, that might not be such a bad thing.