It's not about who we do and do not like. Civil cases have a very, very low standard of proof (not really proof at all - 50% + 1 means you just need to hint suggestively that a thing happened and collect your cash) and can be brought for essentially any reason. They are prone to abuse and often used vindictively, or as harassment, or as a tool for leverage in negotiations, or because a person was found not guilty. If we do as you suggest then the justice system is just acting as yet another mechanism for the wealthy and powerful to enforce their will upon the poor and powerless.