"The spread of both viruses is by the same meansStatistically...

"The spread of both viruses is by the same means

Statistically therefore it is simply not possible for flu to have just "stopped""

The spread - by the same means. But a different contagion factor.
Not possible for flu to have just 'stopped'. It didn't

In bad flu seasons - how is it spread?
How many people were on public transport?
How many in offices?
How many on planes?
What was the 'crowd density' in public places?

And you say - 'what conspiracy theories' - do you have no self awareness? None?

After joining a very small chorus on the Trump loss in Arizona? No self awareness? None?

Looks that way.