TASK DEFINITION: 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.
PROBLEM: Marriage is indeed a 'straight thing', and gay groups have taken a wholesome institution and used it to validify their sexual vices.

SOLUTION: Valid

PROBLEM: Those people who don't voice an opinion in favor of gay civil unions are enabling the discrimination between heterosexual and homosexual couples to continue.

SOLUTION: Valid

PROBLEM: if being gay was as popular as being straight, being straight would be as "unnatural" as being gay is.

SOLUTION:
Valid