I mean you're probably taking the piss but that's probably the worst comparison I've ever seen.
The only thing Somali nomads and the Mongols had in common is that they were both largely nomadic societies.
One of these groups went on to conquer the largest contiguous land empire of all time, and the other group stuck to trading, building city states and sultanates that, in later history, pretty much trumped Abyssinia in terms of infrastructure, economic clout and arguably military, while at the same time also still having many nomadic societies living in the hinterland.
Abyssinia and China is also not a great comparison, since ancient China, historically speaking split up and fragmented so many times into smaller kingdoms that it would be more accurate to compare it to the Somali historical tendency to break off into clan-based regions/kingdoms.