(1)
what if it is APC that paid her and her cohorts to say that, they are paid to protest against buhari?
(2)
if someone bribes you will you let the cat out of the bag like that and expect another customer?
(3)
why didnt the video crew interview Buhari supporters that where there and ask them why the chose Buhari? please answer reasonably without insults, thanks

You don't have to believe it. If many of the youths do not know why they were there and you still say this, then you are allowed to believe that which you want to.