Claim??? The problems are a matter of record, and whether or not there was corruption in UEFA this time, it wouldn't be a first.
Since PL and UA were so keen to host it, it is not unreasonable - even entirely appropriate, to expect that both countries might have addressed the problem during the run up to the tournament. But no. They didn't. Though some of the sillier inhabitants are whining on the Internet after the fact.
The problems are not anywhere near the scale you would hope they would be. And any ludicrous notion that "one incident is one too many" ignores the reality that no one can control the thoughts and actions of everyone, everywhere. There will always be a tiny element in any society who will look to stir up troubles. That doesn't mean all of Poland or Ukraine are to blame if and when someone misbehaves during the games. You know this makes sense because we've already established your own unwillingness to accept responsibility for the crimes Britain has committed.
Of course Poland and Ukraine have considered safety and security measures needed during the games. However, Poland and Ukraine should not turn themselves into pervasive and intrusive police states just because you are used to Britain being one even though it is still unable to tackle its own ongoing problems of racism and related crime in the UK.
And if you think ordinary Poles or Ukrainians should be publicly tarring and feathering their own citizens or even foreigners who commit acts of hooliganism you are dreaming. There won't be any emotional dramas worthy of daytime TV just so you can be kept entertained. If any crime occurs it needs to be referred to local police and they will investigate. That's how crimes are handled.
Anyway, since you acknowledged that UEFA is corrupt then I really don't see why you should care what goes on with EURO 2012. You should just write it all off as a lost cause and go about your business elsewhere because I seriously doubt you have been writing to your MP or other public officials in Blighty to put an end to Britain's involvement in the games.
As you know there have been silly people whining on the internet and the media even before the games got started and virtually all of them have UK post codes, IP addresses or extended ties back in Britain.