Which way should we vote? For me the answer is very simply, "YES". Let me explain. I feel marriage is a social contract and concept. Its a matter of society deciding what is acceptable for our society. Having said that, yes I am also a stern believer in providing equal economic opportunity for any other unions. Remember, our country has always promised equal economic opportunity not social equality. We would not want social equality. Social equality strips identity and culture.
The only argument I have seen that makes sense against this proposition is the one that suggest that by "banning" marriages for all other unions, you effectively remove economic opportunity and benefits that are afforded to married couples.
But proposition 2 when read in its entirety, clearly talks about defining the word marriage as defined between man and woman. It does not take away rights from any other unions. It simply says marriage does not include other unions. So you may say, "what about same sex unions? What about their right?" That is where opportunity exists to create new laws to afford economic equality.
We need laws to define other unions and therefore providing benefits of inheritance, common property, etc to unions between same sex couples. Instead of fighting for the same word, "marriage", why not fight for the economic benefits for the same sex couples and call it something else - because it is different after all.