Theland, you have been on a thousand and one threads on this website where you and other Creationists have been taken to task for implying that 'theory' when used in the context of gravity or evolution means 'not proven'. You know very well that it has a specific meaning when used by scentists in such contexts, namely:
In science, a theory is a mathematical or logical explanation, or a testable model of the manner of interaction of a set of natural phenomena, capable of predicting future occurrences or observations of the same kind, and capable of being tested through experiment or otherwise falsified through empirical observation.
Your continued repetition of your bogus mischaracterisation of what is meant by the word is so deliberate that it is nothing less than an active and knowing lie. I thought Christians didn't lie?
If schools want to mention Creationism in religious eductation classes, then it is acceptable. What is entirely unacceptable is teaching creationism as though it were science, since it manifestly is not science - it is not falsifiable. 'Falsifiable', as you again, well know, means that it can be tested, and is a bed rock of the scientific method. Creationism has failed every attempt to falsify it.
It matters not a jot whether you like it; this is how science is done.