Ask Lemmygrad

You can argue the same for North Korea for that matter. Those countries and others with material conditions considered "worse" than the US were and still are literally brutalized by US/Western imperialism.

Of course they are brutalized. Thats why pointed out, that "worse" is vague. Because it is far more worse to life in a country which is brutalized, than somewhere where the situation is peaceful. But if we speak about "worse" and "better" referring to imperialism, atrocities and genocide, than the US is ranking actually on the first place.

Furthermore, to clarify, I was wondering whether which country is the "worst" primarily based on the actual leaders/ruling class of the government itself and the malicious nature of their actions.

It is not easy to top the USA. But I wouldn't even rank Israel on the second place, because its complicated I think. While Israel commits genocide, they need their support from the US and Europe. Same goes for other countries which may commit similar atrocities. The USA is powerful enough to let such things happen or stop it and they let it happen if its useful. Reminds me how Selensky is begging the US for authorisation to attack specific targets in Russia. I think I would answer your question with "no", there is no worse country.

Of course, I admit that countries (aside from the 2 previously mentioned) like India, France, Britain, and Germany are more influential internationally and overall more active, allowing them to oppress in similar ways that the USA and Israel does, making them worse in many aspects.

That's right. Especially the alliance of those countries you mentioned is a special thing. Speaking of NATO, even Germany, France etc. are absolutely dependent on the US.