The vid on the right the hit him on the head with the follow-through, I think that's a good foul call. His block was clean but the follow through was contact to the head just can't do it. If the refs see that contact they should probably call the foul.
The vid on the left is a 50/50 call, maybe. The defender is crowding not exactly in great defensive position there TBH. It appears he was getting beat off the dribble and he ended up being too close to Young he probably needed to allow more space and hope to block the shot from behind or force him into a bad shot, or just hope he would turn it over or just keep dribbling around. By being so close to Young he put himself in a vulnerable position to get a foul.
The vid on the left is a 50/50 call, maybe. The defender is crowding not exactly in great defensive position there TBH. It appears he was getting beat off the dribble and he ended up being too close to Young he probably needed to allow more space and hope to block the shot from behind or force him into a bad shot, or just hope he would turn it over or just keep dribbling around. By being so close to Young he put himself in a vulnerable position to get a foul.