I guess "morality" isn't the right word in your case, you want gov't to over-legislate quite a few natural activities that people have partaken in for thousands of years, like agriculture, personal relationships (which may or may not be related to morality), medicine, etc.
We're already legislated out the wazoo--and you want more, more, more...until people can't breathe without the state's approval....all in the name of "safety." Didn't Franklin have a good quote about that?
When legislation goes over the top, as you continually promote, nobody will be able or willing to follow said laws. In a round-about way, you're promoting anarchy more than the most militant anarchists, and you don't even know it.
Morality is indeed the wrong word, as is the remainder of your reply as well.
Marriage has always been regulated in this country since our Colonial era.
It is not an example of "new" and certainly not an example of "more" legislation.
And to be frank, I do support "more" legislation, simply because you cannot remove a law from the books without "more" legislation negating that law.
I fully endorse and support less laws, which would, of course, require "more" legislation.