Yes, how *dare* they teach science...
Decades of brainwashing still hasn't convinced the majority of the subjects.
The only "brainwashing" is being done by the constant lies and propaganda of the AECreationists. If it weren't for their unending lies about science in general and evolution in particular, evolutionary biology would be no more widely questioned than most other scientific fields. In countries where there isn't such widespread propaganda, evolution is very widely accepted and non-controversial.
But in any case, truth is hardly determined by popularity, and you should be ashamed of making any such implication. It's also instructive what other things a majority of the American public believe that Just Ain't So, including very basic and noncontroversial matters of basic science. The American public's actual understanding and grasp of science in general is pretty abysmal, so you're treading on very thin ice by trying to cling to the alleged "wisdom" of the general public when it comes to scientific matters. But hey, if that's all you have, I can see why you might beat the drum for it.
Public lack of knowledge notwithstanding, however, evolutionary biology is supported by vast mountains of evidence, and has been validated in countless cross-confirming independently ways. Deal with that, if you can, and stop disingenuously pushing this "popularity determines truth" garbage. If you're really a fan of Aquinas, you wouldn't try to pull this kind of stunt. You know how he'd feel about that.
Vox populi, vox dei.