If you really believe that you should lead an effort to try both President Obama and President Bush, as well as whoever did the target planning for many of the missile and bomb attacks launched during their terms in office.
There are plenty of instances where bombs were dropped or missiles fired at targets where family members of the target were known to be present. In some cases the drone operators saw them before they pressed the fire button.
Plenty of innocent people die during wars, which is one of the many reasons to try to avoid them.
The Geneva Conventions don't prohibit civilian casualties, but they do say you can't target them exclusively in an attack. What Trump is doing would be a war crime, against the Geneva Convention, and immoral (if you believe specifically targeting women and children is wrong).