This feels very broad strokes. It's like saying Germany is bad because of Nazi Germany. That's not to excuse terrible actions but that these histories are long with a variety of leaders and popular beliefs. So viewing a country as a monolith in line with all its past crimes seems very nationalistic.

Using more current context, leadership and events seems like a more realistic view of things. Which doesn't mean the UK is a shining beacon of freedom or democracy, but just to better explain why things happen instead of blaming events of leaders who are not in office or even alive.