That table lists Russia and the Congo as more ethnically diverse than the UK. OK, if you define ethnicity in such a way that it has no correlation with skin colour or any of the traditional aspects of racism, then sure. Maybe there are more ethnic tribes or something in the Congo than the UK.

Now go define it in the way people actually mean when they talk about racism, and see what happens.

Projects like Galileo are impossible without centralization

That's clearly nonsense. The International Space Station is not the product of a giant centralised power structure. It's the result of an international collaboration amongst governments, none of them able to control the others. And the ISS is much more complex an endeavour than Galileo.