[Cboldt]

Name the state whose legislature approved such a thing anyway.

Vermont -- the legislature calls it "civil union."
California -- illegal action by Mayor of SF, trying to merge the legal rights conferred to "civil union" with the word "marriage."
Mass -- Court has found it can order the legislature around in order to change matters of social policy, and the people permit it.

[King Black Robe]

The legislature in Vermont was ordered to do what they did by their judicial rulers (Supreme Court) just like in MA.

The only state that has actually acted by legislation (not court-ordered shotgun legislation) is California and their domestic partner laws, but that was after the people of California voted 2 to 1 to define marriage as one man/one woman.