How many places in a densely populated city can you precisely drop a bomb with no risk to civilians? Yes, technology has improved, but my point is that better tech doesn't just automatically make war less awful.

I don't believe the people operating the weapons are different in ways that make civilian casualties obsolete. In WW2 it was a decision to bomb population centers, not an accident. That decision can be made today too.

Even 100% accurate precision weapons are only as good as the target information supplied to them. Bad Intel and misidentified targets are very real factors that can cause a precision weapon to strike something they shouldn't.