How would that be any different than what we already have?
It's another step down the slippery slope. What is really going on here is forcing society to accept their behaviour. That includes Christians who believe the behaviour to be sinful.
They will tell you that it's about insurance and wills but that's bunk. You can will your assets to anyone and name anyone on life insurance. Health insurance is a different matter. There are serious health risks with this sexual behaviour. They want the consequences to be paid for by others.
"All that is necessary for the triumph of evil is that good men do nothing." Edmund Burke
Or as another wise man counseled,"Lead, follow, or get the hell out of the way."