I'm English and on the list of things I care about, United are up near the top, whereas the monarchy are very much down at the bottom.
It's not only the foreign fans here who think this way, though of course we have many of them here, and that's part of what makes this forum great.
Throwing insults around because someone doesn't support your particular ideology is immature and unwelcome. By all means debate it, but let's try to stay classy.
As I said elsewhere, it's sad she died on a human level - but she had a good innings, and this was coming, we knew well before Christmas. She wasn't murdered, or died young, it's not a shock.
2 mins silence before games should be sufficient, there will be plenty of coverage on TV if you want to reminisce about it.