why they have to continue to give him special treatment for every single step
Because the US “justice” system is very conservative and Frank Wilhoit was absolutely right in this characterization:
Conservatism consists of exactly one proposition … There must be in-groups whom the law protects but does not bind, alongside out-groups whom the law binds but does not protect
Trump is in the in-group no matter what and anyone who displeases the fascist man-child and his cult in any way is in the out-group. No matter what.