And, it's more so than bikeshedding over what terminology the government should use to talk about inheritance and visitation rights.
(Also, isn't having an elected government being viewed more and more as basic human rights these days?)
This also comes at the expense of other non-traditional relationships, by making the argument about making a narrow change to what's called "marriage" rather than about handling the associated legal rights more flexibly.
So yes, bikeshedding.
Also, your original argument that a debate about Communism is also about human rights is applicable to any political debate, because of course politics is all about deciding things that affect people.
If you can't understand the difference between a class of people being denied common rights, and standard political debate about rules that ostensibly apply to everyone then I have no additional argument to try to help you see the light.
http://en.wikipedia.org/wiki/Domestic_partnership_in_Califor...
See under "Scope". By 2008 as amended, California afforded domestic partnerships the same rights and responsibilities as marriages under state law.
Federal law was of course different due to DOMA, which was overturned in 2013.
Prop 8 did not remove any legal privileges available under CA Domestic Partner law. It did not revoke any marriage licenses, either.
As for denying "common rights", you are begging the question. What common public good (not "right") is secured by marriage, defined based on that public good, that the state should regulate it in the first place?
Traditionally (in the US), legally regulated marriage had to do with family law, children, rearing as well as getting of children, forming legally recognized kinship based on procreation and adoption.
Along the way, baggage including visitation rights at hospitals and jails was thrown on board, but such regulations are not essential.
If people can't agree on the common good of marriage, then marriage should not be legally regulated at all.
It's stupefyingly clear from this case that people do not even use the same definitions for words including "marriage" and "rights". That this is true does not make anyone on any particular side of the multi-sided debate an outlaw for dissenting from whatever might be the dominant position, in 2008 or now.
Anyway, ignore the lack of consensus on a common good. You didn't even bother to be accurate about relevant California law. You just made up stuff about "material grievances" and "common rights" to try to dodge debate and cast others as beyond the pale.
Metaphorically, it's the difference between a guy with a big stick who makes stuff up so he can beat your face and a crowd of people voting on what court system to set up to give you a trial.