Another argument, vaguer and even less persuasive, is that gay marriage somehow does harm to heterosexual marriage. I have yet to meet anyone who can explain to me what this means. In what way would allowing same-sex partners to marry diminish the marriages of heterosexual couples?

In this quote, Ted Olson challenges the argument that gay marriage poses a threat to heterosexual marriage. He expresses skepticism about this claim, stating that he has yet to meet anyone who can explain how allowing same-sex couples to marry could somehow diminish or harm the marriages of heterosexual couples. Olson's point highlights the logical inconsistency of the argument against same-sex marriage by questioning the reasoning behind it. He implies that the legal recognition of gay marriage does not affect the stability or validity of marriages between heterosexual individuals.

Olson is also calling attention to the irrationality of the argument that same-sex marriage could harm traditional marriage. In his view, this argument lacks a clear or coherent explanation, which he suggests renders it invalid. By questioning the logic behind it, Olson encourages a more reasonable and evidence-based discussion on the matter, rather than relying on unfounded fears or misconceptions about the effects of gay marriage on society.

His quote reflects his stance as a legal advocate for equal rights and marriage equality. As a prominent lawyer, Olson played a crucial role in Perry v. Schwarzenegger, the case that successfully challenged California's Proposition 8, which banned same-sex marriage. His arguments have consistently centered on the principle that equality under the law should extend to all individuals, regardless of sexual orientation, and that the legal recognition of gay marriage would not undermine heterosexual unions in any way.

The origin of this quote lies in Olson’s broader advocacy for civil rights and his efforts to dismantle discriminatory laws. His rhetorical approach in the quote aims to strip away the emotional or unfounded arguments against same-sex marriage by forcing a critical examination of the claim that it somehow harms heterosexual marriage. By presenting the issue in logical terms, Olson reinforces his belief that marriage equality should be a fundamental right for all couples, without causing harm to others.