Sometimes you're not the rule maker, just the rule enforcer.
In our HOA, the original documents were written that it takes 80% of the homeowners - at a physical meeting - to change the rules. We have 372 homes in our HOA. It is hard to get more than 12 homeowners to ANY meeting. So we are stuck with the rules as written.
If you, as a city, wish to make an exception to your banner policy for "patriotic" purposes, go for it. Fully expect to have it challenged in court and cost the city thousands of dollars defending it. That cost will likely have to be paid with higher taxes, for which you will be blamed. Isn't this fun?
LOL, you're "stuck" with nothing - it's EXACTLY the way you want it. And it's WHY no one shows up - if more showed up, you'd have to change the rules until they stopped.
And of course, being a rules follower, y'all file with the SEC when you invest the reserve funds, and issue annual dividends to the residents, right?
Sure you do! LOL!