Earlier quoted context omitted.
False accusations should be punished with the same penalty as the accuser tried to put upon the innocent. Until that happens, people will see no reason to stop false accusations that they think will help them.
That's a terrible idea. It would mean that people would fear to report genuine crimes because they are then harshly punished if the accused is acquitted. The fact is that the justice system is not perfect. Occasionally a guilty person will be acquitted, and it would really be best not to also punish an innocent as a result of that.
That's not how it works, is it? it is not a battle where someone has to be guilty - either the accused or the accuser. Someone can be acquitted without anyone lying, or making false statements, or anything else. Just a few examples: insufficient evidence to prosecute, contradictory timelines.
It is bizarre that anyone thinks that this could be the system - get a conviction or suffer a conviction yourself.
There is a spectrum between provable accusations and demonstrably false claims that includes uncertainty, doubt and poor evidence. It isn't like going all-in in poker!