They said Soviet so you’re moving the goalposts, and I think if you really believe that Russia is worse then you need to educate yourself on US foreign interventions.
Russia is bad, but they haven’t had nearly the global influence the US has had over the last century. The US is singularly militarily dominant. Any claims about other countries being bigger or badder is just fearmongering propaganda.
If we expand the scope to proxy wars then the US would have to be responsible for more deaths than any other single entity in human history by a large margin, many of which come from outright genocides. They are a global superpower. They are an amoral powerbroking machine.