Argument: Gay marriage does not harm heterosexual marriages
- Debate: Civil unions vs. gay marriage - con argument.
"Civil Unions Are Not Enough. Six Key Reasons Why." Lambda Legal: "In its decision that a civil union law in California (there called a domestic partnership law) did not provide equality under the constitution, that state’s highest court listed these top two reasons why civil unions are not enough: 'First, the exclusion of same-sex couples from the designation of marriage clearly is not necessary in order to afford full protection to all of the rights and benefits that currently are enjoyed by married opposite-sex couples; permitting same-sex couples access to the designation of marriage will not deprive opposite-sex couples of any rights and will not alter the legal framework of the institution of marriage, because same-sex couples who choose to marry will be subject to the same obligations and duties that currently are imposed on married opposite-sex couples."