Many of my neighbors have such signs in their front yards. Some of them are gay. One could in theory be an anti-gay conservative and have such a sign, but in practice this is not likely. There are dozens of them in my surrounding neighborhood, therefore I could ring doorbells and construct a list of 100 people who support Helen's viewpoints.
http://www.borndifferent.org/home.html http://colorado.mediamatters.org/items/200609290001