Evidence for the bleedin obvious? Maybe you can't see it as obviously as I can because you are sitting to the left of politics and are supportive of those issues.
And yes, nothing wrong with it IF that's your position.... but there are alot of people who don't support those things and who are very conservation minded and "green" just like you are and want "green" issues first and foremost... not forgotten and superceded by a list of socialist agendas.
Greens will inevitably marginalise more right-wing minded conservatives if they keep going that way...