So can we take it that those condemning the Hamas (or the non-Hamas) rockets for being directed at targets where civilians live extend the same condemnation to missiles shells and bullets aimed at places where civilians live? My impression is that we cannot.

Whichever side does it the violence is unjustifiable and harmful to the side which indulges in it. It is possible and important to try to understand why it happens, but that does not mean we should try to justify it. People who claim to be sympathetic to Israel should also recognise this in the same way as people who are sympathetic to Palestine.