The Taliban think it is good to keep half of their society uneducated and dressed in a black bag. They are wrong.
Meh... says you.
We should not excuse this sort of error on the basis or cultural relativism. It is not up to personal opinion, nor is it a matter of preference or might-is-right.
We simply don't have the resources for that. With limitless resources, sure. Reality is a whole other deal. Simply put, the whole world cannot become the US, nor Britain in your case, because the only reason there exists 'freedom' in these countries is the existing infrastructure supplied with quantious resources.
It sounds terrible, but the implications of every single human being moving up to at least the middle class is disastrous and untenable.