O Abu Layth! When will world peace ensue? When the whole world accepts the shariah of RasulAllah ﷺ! Isa alayhis salam came 2,000 years ago but it's only when he tells people he follows the shariah of Muhammad RasulAllah ﷺ that the entire earth will accept the true faith. How did you figure that this necessitates Isa alayhis salam being superior to RasulAllah ﷺ...? It's exactly the opposite. It proves the superiority of RasulAllah ﷺ once again.