freda, SHE say: every action has its equal and opposite reaction - on this point science and mysticism agree.

Not at all true!!! Nowhere in science does it say that! It is a mistake many people make in quoting Newton. If you look closely at the terminology at the time of Newton, and the setting in which it was made, you will find that what he was talking about was FORCES! The proper way to state that in scientific language is this: "All forces occour in pairs."

Since your premise is wrong, your argument is meaningless.