Now you have said that the children also accuse me of abuse you no longer have a "he said, she said" case.  What you have is a number of 'victims' claiming they have been abused and a direct witness to that abuse, the mother.  Difficult if not impossible, to defend oneself against other than by showing the unreliability of both victims and witness, inconsistencies in their evidence and evidence from others familiar with the family, (teachers, doctors and social workers etc.)

To put it in terms of the broken car window the case you are now outlining would be akin to three of your neighbours who don't like you smashing a car window and all three saying they saw you do it.

Both of the above are cases of perverting the course of justice - that is not what you objected to in your opening post.