For a start, R.A.B. is dead.
Secondly, the caretaker in the days Mr and Mrs Weasley were at school was called Apollyon Pringle and the game keeper was called Ogg. You can find these things out in book 4 p. 535-536. I doubt squibs are invited to attend Hogwarts as a student and the mention of Pringle proves that Filch was not at Hogwarts for over a hundred years, as ArgusFilch seemed to think. I would think that Molly and Arthur are in their 50s, meaning that Filch can’t have been there before Dumbledore. Another thing that justifies this is that Hagrid is around 70 (You can work this out with the age he was when he was expelled and the years before the story is situated, 50) and Voldy is a little older which means that Filch was not at Hogwarts when Voldy was.
It’s an interesting theory, but it has too many obvious weak points. I advise that you think over your theories more carefully in future before you publish them. But I’m not saying to stop trying! We all like to hear different people’s opinions.