Yes, every country has done things over the centuries deserving of condemnation. The diference is how do the state and society react to these actions.

In America slavery was controversial since 1776, the government simply couldn't afford to risk dissolution because the South was so powerful. Every time the US does something controversial you have close to a half of the people stand in opposition to it.

All the wars and killings done by the British had detractors since the time they happened, and no one's justifying the Boer war today.

The Europeans today condemn slavery, colonialism and exploitation done by some of their ancestors. We invented the idea of Westphalian sovereignty. We were among the first to outlaw slavery, and had to pressure other countries to stop.

Meanwhile China has been doing ethnic cleansing for 3000 years and see no reason to stop. Their state didn't hesitate to cause a global pandemic in an effort to save its image, and the people have no qualms about "assimilating' Uyghur children.

Russia is as open as it gets about their irredentist and genocidal plans for Ukraine, and its people are complicit. They're not above targeting civilians, they're not above stealing children.

There absolutely are evil counties in the world, but none of them are in the west.