A very large number of people live in HOA's that forbid any kind of sign or flag, even Old Glory from being displayed.
Some Yankees tried to get around this by taking a white bed sheet and painting their choice on the sheet and hung them in their windows ---Inside their Homes---
The HOA's took them to court anyway and as the HOA's had more money for a court fight the owners took them down.
Some HOA's in Maine even objected to political bumper stickers on Autos parked in the owners open car ports.
Then the nuts, one woman was fined for attaching a Christmass wreath to the side of her home, NH. an old timer a former POW put up a small POW flag attached to his home and got his butt sued off. He had the entire town behind him, he fought, he lost.
Darn if I wish to live as the Chinese do with unisex clothing, all homes identical, all hair cuts the same, all shoes the same, then I move to a place with a HOA in America where I need permission from some stranger to to plant a rose bush or own a red car.
Never know what will come up next even for those that do not belong to a HOA, lived in one of these areas that after 10 years decided to form one. I would never join, but it did not stop the members from trying to get ME to follow their rules.
Perhaps the people are afraid to put up political signs, -------Good grief, what are we becoming ??????