Joseph Duggar -- who was arrested Wednesday for allegedly sexually abusing an underage girl -- once spoke out against his famous older brother Josh Duggar over accusations of child molestation more than a decade ago. Back in 2015 ... Joseph weighed in on Josh's misconduct after Josh was accused of inappropriately touching five girls, including his own sisters, Jill and Jessa . Both brothers, of course, starred on TLC’s “19 Kids and Counting.” Joseph commented on the scandal in a clip for TLC's