1) “Our royal family directly descends from Solomon” no one is the Horn of Africa is descended from nabi Solomon AS the funny thing this is the same thing for isaaq claiming they’re descendants from uncle from the prophet or Ali Ra sons. At least isaaq come with better reasoning so I will give them that.
2) “the Ark of the Covenant has been found in Ethiopia” the guy is Muslim bruh we don’t take sources from the Christian who say it’s somewhere in Ethiopia. If the prophet didn’t say where it was then we don’t expand it and we don’t agree or disagree with other religions book. So the ark of the covenant is unknown for now.
3)”without us Islam would’ve died.” Isn’t haram to say that as Muslim ? but also you can use this logic for many cases like if it wasn’t for the prophet uncle Islam would’ve died. If it wasn’t for the sahaba who died in the war islam would’ve died etc