Execution of lethal aggression numbs the mind and the body, and eventually the soul. We see this in PTSD among combat troops, who have seen and done things they can hardly live with. Abortion providers are not exempt from this traumatic stress response. To kill, one must somehow first dehumanize the victim. Once dehumanized, why not throw it around. It sounds horrific and it is, but that is real life.
The difference between combat veterans and abortion providers is that the abortion providers can easily walk away— no one makes them work there or stay there. Plenty of jobs elsewhere.