I engaged in no fallacy whatsoever.
One of the most well known and well-paid anti smoker activists is a national figure in the pro-gay adoption (and everything else) movement. He claims he and his "partner" are better parents and role models than my husband and I because they do not smoke.
Anyone that brings up any kind of comparison to smokers advocating private property rights to gay activists is going to get the exact same response.
There is no inherent "right" to smoke. Smokers working in an office, owned by someone else, do not have a right to smoke in that building if the owner wants to ban smoking. Smokers in a public building, owned by some governmental entity do not have the right to smoke there either.
A proprietor of a restaurant does have a right to have place for smokers or non-smokers without government interference. Smokers have a right to smoke in their own homes. Smokers do not have a right to smoke in my home.
No need to make any comparison to homo-rights activists.