Can I use let alone in a positive sentence like this: Indeed, this move could create a vicious cycle of trade retaliation as countries including America's allies like Japan and Canada, let alone China, are vowing to retaliate.
This sentence is a part of an Korean to English translation. It means American's long-standing allies such as Japan and Canada ,and of course China (because China is not America's long-standing ally, of course China must retaliate) are vowing to retaliate against the strong tariffs on imported steel and aluminum.
When I looked for let alone, Longman says:
used after a negative statement to say that the next thing you mention is even more unlikely Longman
And Oxford Dictionary alsy says:
used after a statement to emphasize that because the first thing is not true or possible, the next thing cannot be true or possible either Oxford
Can I use "let alone" in that sentence? if not, what can I use instead of it? (++ The original Korean text says of course China would do it, and even America's allies such as Japan and Canada might do that too. In this case, how can I say it in a simple way? )