Not yet, but it's next. Lawsuits demanding the "right" to marry children, corpses, farm animals, and vegetables are probably already being filed...
The reason I ask is that in CA many retired civil servants earn a pension and when the person dies, the spouse gets a reduced pension until he or she dies. If a retired man divorces his wife and marries his son, that could add another 30 years of tax payers paying that pension. Two males can’t re-produce, so I can’t see why their “love” can be denied. The divorce and marriage could be a scam, but prove it.