We would like you to assess the QUALITY of each of the following argument (discussing Gay Marriage) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of gay marriage. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gay marriage.

If inclusion of same sex couples being allowed to marry is what you call "redefining", then the inclusion of interracial couples would also be a "redefiniton."
Valid

As we have seen the growth of egalitarian marriages and of women being able to earn higher incomes, we have also seen the coming out of gay couples and the increasing visibility of gay couples raising children.
Valid

If you like, we can talk about Arab nations who prefer to have sex with little boys, and just use women for reproduction.

Invalid