And then there's this:
Is the sun falling silent and dropping off in activity?
This, though, would certainly not be the first time this has happened. During the latter half of the 17th century, the sun went through an extremely quiet phase - a period called the Maunder Minimum. Historical records reveal that sunspots virtually disappeared during this time. Green says,
I have to wonder who kept those records and how they were obtained. The telescope hadn't been invented very long before this. What did they have to compare to earliar sunspot activity. Nobody recorded them before. Where are these records? Galileo observed sun spots but I don't recall him making records of them. Like size and quantity and duration. And with his crude telescopes, he probably couldn't see them all.
Your theory needs some more support.