I dunno about this. I don't think this needs nonblack people to do anything.
Rwanda's neighbors Uganda , Kenya, and (farther away) TZ easily dwarf rwanda industrially , economically, militarily, and population wise. They just need to apply pressure. Their leverage is great.
If they wanted to, they could all literally cut off rwanda from ports in the Indian ocean and snuff their economy out for infringing on Congolese sovereignty. It doesn't even need to be a military effort. Sanctions alone could stop Rwandan fckery in eastern congo. But it requires a unified east African front. If they could buy off south Sudan, then their would be no Nile trading for rwanda in addition to no eastern port access until they stopped their covert ops in congo.
Ok let's just use black people.
I grew up around black people from all over the Diaspora. Every couple of years you might hear some Congolese people making noise a out this in going conflict.
The West Indian people I know aren't saying a peep about this conflict but have something to say about Israel/Palestine.
Africans I know from all ends of the continent have not said anything either but are extremely vocal about the Israel/Palestine conflict, especially the Somalis and north Africans going to protest every week in my city.
Isn't south Sudan going through a civil war right now? Aren't there isn't an ongoing battle right in the middle of the nile?
I haven't heard any smoke for Rwanda, I see what your proposing but which nation is saying to do that? What you said makes sense and us a great strategy but it's a hypothetical.
You in all honesty believe African countries are gonna sanction Rwanda?