This is all I can find about his views on same-sex marriage. It seems to contradict what you're saying. He says he doesn't care.
“Si vos querés estar con un elefante... Si tenés el consentimiento del elefante, es tu problema y del elefante. No me opongo a que dos personas del mismo sexo se casen”, remarcó. Y sumó: “Para mí, el matrimonio es un contrato. Puede ser de dos partes, tres partes o 50 si uno quiere”.
My translation:
"If you want to be with an elephant... If you have the elephant's consent, it's your problem and the elephant's. I'm not opposed to two people of the same sex marrying," he remarked. And, he added, "For me, marriage is a contract. It can be between two parties, three parties, or fifty if one wants."
Edit: Another quote from the article:
“Es un contrato entre partes. ¿Qué tengo que opinar yo? Vos casate con quien quieras. El liberalismo es el respeto irrestricto del proyecto de vida del prójimo basado en el principio de no agresión y en defensa del derecho a la vida, la libertad y la propiedad. ¿En qué me agrede a mi que dos personas del mismo sexo se casen? En nada, punto uno afuera. ¿Afecta la vida de alguien? A nadie. ¿En la libertad? A nadie ¿En la propiedad? a nadie”.
It's a contract between parties. What do I think? Marry whoever you want. Liberalism is unconditional respect of the life plan of our fellow man based on the principle of non-aggression and in defense of the right to life, liberty, and property. What harm does it do to me that two people of the same sex marry? Nothing. Does it affect someone's life? No one's. Their libery? No one's. Their property? No one's.
Yeah, he seems really blunt, crass, and insensitive.
His vice says she's against calling it marriage, which does seem homophobic, but she says she's not bothered by the rights afforded by civil unions. This isn't the worst thing; she's not going campaigning against the right of gays to have their marriages/civil unions recognized by the government, at least.
Civil union is a legal figure (approved in 2002) that grants less rights than marriage. Same sex marriage was legalised in 2010. What she is proposing is taking a step backwards in terms of rights.
One doesn't have to personally like or agree with the choices of others. Being libertarian is about respecting another person's personal choices despite not liking them.
“Si vos querés estar con un elefante... Si tenés el consentimiento del elefante, es tu problema y del elefante. No me opongo a que dos personas del mismo sexo se casen”, remarcó. Y sumó: “Para mí, el matrimonio es un contrato. Puede ser de dos partes, tres partes o 50 si uno quiere”.
My translation:
"If you want to be with an elephant... If you have the elephant's consent, it's your problem and the elephant's. I'm not opposed to two people of the same sex marrying," he remarked. And, he added, "For me, marriage is a contract. It can be between two parties, three parties, or fifty if one wants."
Edit: Another quote from the article:
“Es un contrato entre partes. ¿Qué tengo que opinar yo? Vos casate con quien quieras. El liberalismo es el respeto irrestricto del proyecto de vida del prójimo basado en el principio de no agresión y en defensa del derecho a la vida, la libertad y la propiedad. ¿En qué me agrede a mi que dos personas del mismo sexo se casen? En nada, punto uno afuera. ¿Afecta la vida de alguien? A nadie. ¿En la libertad? A nadie ¿En la propiedad? a nadie”.
It's a contract between parties. What do I think? Marry whoever you want. Liberalism is unconditional respect of the life plan of our fellow man based on the principle of non-aggression and in defense of the right to life, liberty, and property. What harm does it do to me that two people of the same sex marry? Nothing. Does it affect someone's life? No one's. Their libery? No one's. Their property? No one's.
https://www.lanacion.com.ar/politica/javier-milei-aclaro-su-...