It's often malicious in intent. All these policies are good as long as they hurt the "right" people, the ones that MAGA doesn't like. Once they themselves are hurt by the policies they actively supported they turn around and play the victim.
I'll never get over the numerous news stories along the lines of "husband and wife are huge Trump supporters, always voted for him, and are now crying and whining because one of them doesn't actually have legal paperwork and will be deported as well". You'd think people would be a bit more careful in those instances, but hurting others seems to be more important.