In fact, if someone proposes a radical change to society, to law, or to institutions such as marriage it is the proponent of change who properly bears a serious burden of warrant. In that light, the now all too common attempt to tag, demonise and dismiss those who ask pointed questions about radical agendas is rude and uncivil. (Cf. Alinski's rules for radicals. Also, the comments on Phillips' book made several days ago.)
F/N: Note how Skype chatting or conferencing is being used to develop and present the interview, a hint at the potentialities of these technologies. Including for education.