The problem is most oblate spheroid earthers are indoctrinated with the information and aren't taught the logical holes in some of the arguments made.
So when critical analysis is done later in life (which is what critical thinkers engage in) they have to account for the fact that the evidence presented doesn't actually prove in the oblate spheroid Earth because their teachers were too lazy to provide the full picture.
The problem is most oblate spheroid earthers are indoctrinated with the information and aren't taught the logical holes in some of the arguments made.
So when critical analysis is done later in life (which is what critical thinkers engage in) they have to account for the fact that the evidence presented doesn't actually prove in the oblate spheroid Earth because their teachers were too lazy to provide the full picture.
This leads to distrust.