Well, the simplest explanation is Newton's Third Law:
"Actioni contrariam semper et Ã¦qualem esse reactionem: sive corporum duorum actiones in se mutuo semper esse Ã¦quales et in partes contrarias dirigi."
And, for those not versed in Latin:
"To every action there is always opposed an equal reaction: or the mutual actions of two bodies upon each other are always equal, and directed to contrary parts."
There is no "fix" as the Three Laws are universal constants, there are workarounds ... all of which simply include planning for the reactive torque expected to be encountered.