So what I'm saying is, saying "it's 'cos they're doping" is not the sole reason for them becoming super successful, because otherwise they'd have been stomping people earlier. Maybe they're doping better, maybe they're doping longer, maybe they're doping harder.
But there are also potential reasons outside of dope.
For example, we've just seen an era where a disjointed French team that won big a decade ago has been gutted of its big names and has struggled to replace them. Germany have been in rebuilding; they've got a good team now, but the team that played Spain in the final in '08 was not as imposing as today's. England have always flattered to deceive. Italy aren't the force they once were, although they're showing signs they may be about to become it again. Portugal always seem to find a way to make mistakes. They're not stomping a field of superhuman footballers. And they themselves have always had that issue of having created some amazing sides, but never having achieved what they should have done, always having a bad game at the wrong time. And the fear of history repeating has been ingrained in the fans, pundits, press. This kind of self-fulfilling prophecy isn't uncommon - same goes for the Netherlands, and England in penalty shoot-outs.
To take it closer to home, think of Cadel Evans. He was a top quality rider, always has been. But he was always the nearly man, and you could see how he struggled and got nervous and/or aggressive with people when under the pressure of expectation. Winning the World Championships changed him. Yes, there had been signs of the new, aggressive attacking Evans before then, but it was like he had finally picked up that big, world class level win that his talent deserved, and the pressure of having come close and failed time and time again suddenly evaporated away from him. And since then, his results have been far better. He seems no longer afraid of losing, because he's a winner.
I know and fully accept that the Spanish team is full of players who have doped, are doping and will continue to dope. But the other teams have dopers too, and the Spanish players being full of dope is only part of the reason they've changed from nearly men to winners. How big that part is is open to interpretation, but saying that it's 100%, pure and simple, the only reason why Spain are winning things is too simplistic, too basic a view. There's a mentality issue too, and a quality of opposition issue, and also a bit of a hex over opponents - the constant talk in the press about what the great Spanish team will do kind of puts a bit of pressure on the opposition too.