Buy Canadian

Wikipedia still lists their head office in Toronto, at least Rakuten is Japanese if that makes it any better?

AFAIK they're still one of the better (if not least worst) ereader options, calibre works great with them and they tie into the eBook platform used by pretty much every library I have a card with (go check your library, there's card sharing between some of them and some cities will give you a card for working there, our libraries are a treasured resource).