T’Challa was inspiring faith and confidence in Wakandan people after beating W’Kabi. You didn’t see how happy and proud of him everyone was? Meanwhile Shuri was....complaining about her corset
You talk of the Lion King like
1). Simba wasn’t being primed to take over as King BY Mufasa before he died. You had scenes of Mufasa showing Simba the Pride Lands, teaching him about the circle of life. Impressing upon him what it means to BE a ruler. Shuri bas gotten none of that development, why? Because her MCU counterpart was NOT supposed to rule nor did she have any skill nor desire to.
Your Lion King correlation is faulty and full of holes.
The people just hated Mbaku,but there were clearly questions about his tenure. Why?because they didn't think he was ready,because his fathers sudden death forced him into that position. Sounds familiar?Shuri would be forced into Tchallas position due to his untimely death. Mufasas lessons were falling on deaf ears with young Simba as he thought he had plenty of time to learn from Mufasa. Shuri would be in the same position as Tchalla was,of not feeling ready or worthy to take the mantle. Only difference is Tchalla didn't feel worthy for reasons other than his fighting ability. He almost got his ass beat by Mbaku and Killmonger mollywhopped him,so his fighting skills was suspect too for someone "groomed for this"" .Perhaps Shuri would feel doubt about her fighting,but would turn to what she knows and kill em with the tech. I guess yall missed the part where she came back in the end with the twin cannons and had Killmonger on his knees. More than Tchalla had done to Killmonger up to that point in combat.
Plus lets not act like Tchalla was univervisally believed in either. The doubt showed when he failed to recapture the vibranium and bring Klaw to justice. Lets not forget,not everybody was that torn up when Tchalla got his ass beat and Killmonger took over. But I'm not sure why I'm defending Shuri when I'm mostly wanting Killmonger as lead if they are going to make some shytty new pick for Tchalla out of desperation. She would be the co lead,not carrying the entire movie. I don't want to see a full on Shuri movie either. Not sure why yall won't just say that,because you can't say there isn't a story there. Not based on the reasons you guys are giving.