I think a blackout would be cool.
A couple more losses and people will really start to puke. Then you bust out the STOP WEARING RED banner.
Let's say we're 1-8 or 2-7 3-6 after the road trip to Pittsburgh.
Hit them then with STOP WEARING RED at the Cincy game, and you've got two more home games after that, in a row, where people could stop wearing red.
You could also pump out the STOP WEARING RED message on social media during the 2-game road trip to SD and PIT.
That is going to be the breaking point for a lot of people because those games are gonna be brutal and will end ANY hope of a playoff appearance. We'll be 3-6 at best.