Seriously? Jesus, try not to be completely dense. Imagine for a second that you have polka-dot skin, and place you'd like to work for happens to be in Plaidlandia, where people with polka-dot skin are reviled and discriminatory laws are written into the books against them. Would you take the job in Plaidlandia?
what if your family and friends already lived in Plaidlandia? What if the place you considered home, and everything you already knew, existed in this place whether you had polka-dot skin or not?
This isn't a migrant group of people coming from some far away land and being denied rights. This is your neighbor, my brother, the girl from accounting, the guy who sold you your car... people who already live here in california who go to work and pay taxes just like I do, but don't get the same rights.
Without laws providing rights to these people, they're unable to do things like share benefits after death, visit their loved ones in the hosptial, or practice power of attorney for their loved ones when they become unable to decide or speak for themselves. Without laws providing an equality to marriage (regardless of what you call it) to gay people, health insurance companies and federal benefits don't work with gay couples. It's a sad state of affairs that I hope passes soon. Not long ago, women couldn't vote. Not long ago, black people couldn't own property. Hopefully, not long from now, gays will be given civil rights also.