Most of the asian population are not filthy rich
I've no idea of any figures on this, but I'd tend to agree with you.
I know there is something of a racial stereotype in the UK that Asians all seem to own either a corner shop or a market stall, but my own general observations of Asian communities here are that they tend to be centred in rather poor areas of cities and towns. I know from experience that many Asian people here are incredibly hard working, but I don't see a disproportionate amount of wealth in the UK Asian community in general.
Regarding racism in football. I've not read the whole thread and have only read about what happened at the England game as I don't watch them. Anyway, I think there is only so much football itself can do. Banning any convicted offenders for life would be a good start though. The thing is, football is fighting against the tide currently. There has been a lot of outrage from the English press this week, but I find that rather ironic. Our country is currently awash with overt racism that has been stirred up by mainstream politicians and the media here. Hate crime has gone through the roof. Nationalism, right-wing extremism, bigotry etc have all risen rapidly, just as they have in Europe and the USA.
The most powerful man in the world currently is a fascist madman and an overt racist who wanted to shoot Mexicans trying to cross the border until his staff pointed out it was illegal to do so. In the UK we have a fascist-lite Tory government which practices social Darwinism on the sick, disabled, homeless and the poor. We have xenophobes like Frottage spewing out his poison and far-right morons like Yaxley-Lennon rallying brainless boneheads across the country. Only a few short years ago, fascist scum had to keep their heads down, yet the Brexit result, the likes of the Tories, Trump and Frottage have given them the green light to openly spew their vile, once latent, hatreds and prejudices. We now have Brextremists threatening the lives of those who oppose them.
It is virtually impossible to tackle racism in football effectively if it is being given the green light everywhere else in society. The people who find themselves sat in stands at games are part of wider society, and if wider society is riddled with sickness then, so too, will be a proportion of any gathering of people, be it at football or elsewhere. The facts are, the human race is pretty much at war with itself. Difference is scorned and hatred is everywhere, be it in relation to colour, sexuality, religion, town/city/country you come from, social class, economic status etc... We live in a time where the politics of division are rampant and actually lapped up and embraced by massive sections of society, so it's no wonder this is reflected in football just as it seems to be pretty much everywhere else. Of course, football needs to do all it can to eradicate hate from stadiums, but on its own this is a bit like trying to plug a waterfall with a cork.