> 1. Geopolitics is a very old term.
It is. Dugin relied on previous pseudo-scientific publications by German, British and American authors.
> 2. It does not used more in Russia than it used outside of Russia
Absolutely, Americans love this bullshit too.
> 3. It's clearly not so widely used in the mass media
Without data it's not a convincing argument :)
> no such big geopolitics-related community like r/geopolitics
Nobody in Russian politics reads Reddit :)