You Can See The Home Owner's Associations Point.

https://www.wisn.com/article/couple-gets-creative-after-told-to-take-down-pride-flag/36667485

Even the Song Contest has been known to go;

"Nope! National Flags Only!"

https://www.euronews.com/2016/05/02/palestinians-condemn-eurovison-song-contest-for-flag-ban