Are you sure? To me it seems like USA has the highest rate of drug abuse and the higher rate of drug deaths and drug abuse disorders in the world. It is possible more people use drugs in other countries, but in that case they use it more responsibly, or their overdose deaths aren't properly registered, either way there is no evidence that other countries have a bigger drug problem than USA.

https://ourworldindata.org/drug-use

Look at the map in that link you posted, Greenland, Canada, Russia etc are all high. It's a long page, what exactly are you referring to to disagree with me?

That data probably isn't super relevant to this argument though, since it includes alcohol. I don't think alcohol is more easily available in the US than those other countries because of the USD.