I think the big problem with native America not becoming relevant is that they don't take exploration first and therefore don't colonize all that 'free' land around them. A native american lucky should basically beeline admin 4 like most humans would to try get exploration online asap, as well as proceeding to try to reform/westernize in an attempt to become relevant.
I would think non-European luckies would have a bigger bias and maybe bonuses on westernization. Yes, I know some people moan about non Western nations westernizing but this is RANDOM luckies, the purpose of which is to make a world that is diverse rather than the same four-six blobs every game, everywhere.