A Board member of NOM
Laws against homosexual behavior should remain on the books, not to be indiscriminately enforced against anyone who happens to be caught violating them, but to be used when necessary to send a clear message that those who flagrantly violate society's regulation of sexual behavior cannot be permitted to remain as acceptable, equal citizens within that society.[W]hen government is the enemy of marriage, then the people who are actually creating successful marriages have no choice but to change governments, by whatever means is made possible or necessary… Regardless of law, marriage has only one definition, and any government that attempts to change it is my mortal enemy. I will act to destroy that government and bring it down….
He didn't make her breathe the Terrigen mists to get high, it was to give her powers. While I'm not endorsing Pietro's actions, I think he had good intentions. He didn't set out to make his daughter a junkie, but make her belong in her family of super-powered beings.
Also, they last met in the Mighty Avengers / Realm of Kings crossover.