I think the colour of football crest is a bit of a different story to a flag that has represented a full nation for centuries on a shirt where they're representing that nation.
I think some things should be left alone
It's not an England flag. It's a cross.
If they'd actually made a flag with a white background and put a different cross on it, then you could atually claim they're changing the flag.
But then again, I have no idea why this thread ever made it past @Ric's post that showed conclusively thsat this has been done before and no one gave a shit. So what's changed is not kit designers...it's almost like on of the main political parties openly said the only chance they have of winning an election is to create a culture war and have poured every resource they have into creating one.
No one was arsed in 2010 when England had this kit. Just more tedious, culture war bollocks.