There's nothing inherently "western-exceptional" in recognising that Indo-European languages are structured fundamentally differently than Japanese. That's just

There's nothing inherently "western-exceptional" in recognising that Indo-European languages are structured fundamentally differently than Japanese. That's just a basic fact of linguistic typology. Obviously, nobody is claiming that Japanese has no way of talking about the future, that's the kind of nonsense non-linguists like to read into purely grammatical differences. It's still a fact that English has a grammatical future (actually more than one), even if it's not inflectional and not strictly required in all situations, and Japanese does not. For example, "tomorrow, it's cold" would generally sound weird in English, the most common way to express this would be "tomorrow, it's gonna be cold". There's nothing weird about 明日は寒い, by contrast.