The Hitch said:
			
		
	
	
		
		
			I have seen it in the media a few times. Notably when that telegraph reporter who ghost wrote wiggos book offered his race supremacy theory about how brits could never win the tdf because it was doped but now that they have, it's the litmus test for cycling being clean.
I think it's also implicit when the BBC accuse Chinese or north African athletes of doping because they had surprising transformations  but don't breathe a word about mo farah.
Not all brits or course, nor just Britain.but racist thinking does often hide behind what is portrayed as harmless cheering for your compatriots.
I think I've seen it more from Australians though, especially that ****er the secret pro who believes doping is ok if done by Australians.
		
		
	 
The 'Brits don't dope' crap has its roots in the post tour win wiggins book, where he goes on a bit of a rant about the relative treatment of Virenque 
post-admission and how a brit would be treated by the brits, post-admission. He says somewhere something along the lines of "it's just not acceptable here" - it's part of his "I don't dope" argument.
Of course, on a limited level it's true (the first bit anyway, the bit were it's supposed to show wiggo won't dope is nonsense) - different cultures (not 'races' #weareallmonkeys) have shown different attitudes to dopers over the years, for complex sociological and cultural, and even historical reasons - the mediterranean countries (italy, Spain, Portugal, Greece) have all experienced different forms of fascism over the last century, as well as catholic conservatism. Some quite recently, historically speaking. 
Americana seems to see itself as a walking moral bastion. Accusations against american heroes are to be met with fierce indignation, crys of jealously and ill disguised contempt. One the doper is uncovered - Marion Jones, Lance - there's a good chance they;ll be treated like a leper who 'betrayed american values'. that's the thing about Americana. The pople may let you down, but the idea is sancrosanct.
The Irish had the conservatism, but not the facism - it's possibly not entirely accidental how many of the Pains in Lance's **** were Irish - nor is it accidental that we still give Sean Kelly a big 'benefit of the doubt' - as a culture, we have an inate sympathy for 'doing what it takes' to get one over 'the biog boys'. 'Cute hoorism' - the Irish actively enjoy watching the dodgy little guy getting the win - if he does it on our behalf, all the better. Hell, Fianna Fail have dominated southern politics on that basis for the better part of 90 years. Not always mind. Michelle Smith ain't popular. There seems to be a statute of liitations on moral indignation. If you can paint it as, those were the bad days at the moment you're found out, youi've a much better chance.
The Brits tend to a similar belief in moral purpose of sport to the americans, and a puritanism once an athlete is found out. see, Chambers, Dwaine. Other cultues have other cultural reactions. 
Neither better, nor worse; just different.
That has somehow become the idea that brits believe that no brit dopes, which is patently, frankly, absurd. Even casual sports watchers know of Dwaine Chambers -  the campaigns to keep him out of a GB vest were many and public, including in the telegraph. And to 'forgive' their dopers (and forgiveness is the right word)  the Brits expect a certain 'public repentance' (honest or otherwise), and a narrative about how this 'bad person' has seen the light and is saving others from the darkness. Hence David Millar.
None of which changes the other reality, either. All countries have doping, without exception - probably even the Vatican City state all-priest footie team. Some countries, for non-racial historical reasons have worse problems than others (poverty, politics, prizemoney), and some have worse problems in some sports than others. Some appear to be trying to tackle it (Russia, even today, yet more high profile positives - from the blood passport programme no less, is still better than the former denial). some, sadly, don't (Jamaica seem to be hounding the officials who banned Powell, Kenya)
And for the record Ye Shewin was defended, broadly by the BBC (and some fo their non-brit pundits like Thorpe) when the americans went all in. Cram was however publicly 'troubled' by the turkish women and Makhloufi. Given Makhloufi seems to have gone to ground, and Çakır Alptekin's subsequent 2nd bust, since 'cleared' by the turks, was he entirely wrong?