I doubt shabaab wants to conquer the world. They would have united us to March towards Ethiopia by now. The bombing in Kenya is just a pretext to have KDF in Jubaland.
Of course they can't, as they lack the capabilities. But their vision is surely to conquer the world with allied militant organizations.
How come they are targeting Ethiopia and Kenya if they're planning to remain in Somalia. It surely involves more than just a 'pretext' and 'collaboration' from KDF. Do you even know how bad it has gotten lately in NFD? Not only attacks, but even growing support from the locals.
In Ethiopia, they've made several attempts but failed massively since they lack support on the ground and ENDF/Liyu being in control of the borders. All of this attacks in neighboring countries despite not controlling all of Somalia. What does this tell you?