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.

Most individuals with psychiatric symptoms experience a subjective sense of distress that may include feelings such as pain, anguish, dysphoria (unpleasant mood), shame, embarrassment or guilt.
Invalid

Multiple partners, close relatives, same-sex partners, non-human partners and underage partners are all not recognized as legitimate by the government.
Valid

Gay marriage being something that some people think is "not desirable" just isn't going to be sufficient enough excuse for discrimination.

Valid