but whether he's a biblical scholar or not, he makes at least one pretty big error before the two minute mark. (I stopped at the 1:50 mark on the video.)
1. He may be right that Charlie Kirk didn't
directly address whatever the guy said about the morality or immorality of sexual intercourse between homosexuals, but as others have noted here, his response does show that homosexual acts are inherently gravely immoral. Jesus does say that marriage is between a man and a woman and the bible is very clear that sexual intercourse outside of marriage is gravely sinful.
2. He says that a valid marriage can't be broken, so far so good, (but then he falls into error) except for sexual immorality, which some would say adultery. That is NOT what Matthew was saying in speaking to his Jewish audience.
https://web.archive.org/web/20160304092035/http://www.biblicalperspectives.com/books/marriage/4.html