Regardless how you view Israel, that nation wouldn't have gotten as far without the support of their diaspora in the west. Everything that jewish zionist in the west do (especially monetary wise) is in the name of Israel.
It's the sheer determination of wanting their people to prosper no matter the cause (which is a problem of itself) , and their collective mindset is the reason why Israel is still standing.
Whereas Ghanaian diasporans are hyper individualistic, extremely classist (envious as well), and only travel to Ghana to party in December (at best)instead of bringing their expertise/skills to the country that is suffering from constant brain drain. No ambition or drive to see your home country thrive.
Imo, Ghanaians from U.S and Britain are the biggest failures. And I say this as a diasporan myself.
Edit: Sorry for the title, I was in the heat of the moment