Is Europe completely fine? No. But that isn't your question. You're asking about in comparison to America, and most of Europe does better in multiple metrics. Legolas is right this is simply about better race-neutral social policy benefiting minorities in Europe, compared to in America, but the reverse is also true. America's shiftiness to it's poor redounds more strongly on it's minorities.

Australia is another place where there's plenty that is wrong, but there isn't such massive blindness about it. The Parliament actually issued a formal apology to the Indigenous Australian population for the child separation policy. While you can scoff at that as merely superficial, this kind of acceptance of guilt has profound downstream effects, not least being several of the Stolen Generation being able to fight for recompense in court, and several states offering up restitution funds.

The fact remains, America has never formally apologized for slavery. Correct me if I'm wrong, but no formal apology has ever passed both the House and Senate and signed into law. Never apologized for the Trail of Tears, though looking into it, an apology to Native Americans was apparently buried in a Defense Bill in 2010.

Later ills, like Him Crow, redlining, and the war on drugs have never been apologized for. Clinton apologized for the Crime Bill, but only when it was politically expedient.

Moving past reckoning and apology, it's also true that literally no other country in this planet incarcerated such a high proportion of it's minority population.

And while again, the case can be made that America's broad wealth inequality is worse than other advanced nations, that, too, falls more harshly on African Americans and Native people.

None of which is to say America is the worst about this. Absolutely not. But it's far from the best.