I’m gonna hazard a guess here that this “pastor” was not ruminating on the beach without a cause that put the thought in his mind. In this case, the cause was his own child where the father had suspicions and indications that he could not face. This is simple human rationalization and it’s been the First Way of humans over the entire span of time. Not likely to change, either...
Bingo. Some of the most obnoxious "Christians" I have encountered are the parents of gays who want to change the church to be more "inclusive", as if we were never taught, "Enter through the narrow gate; for the gate is wide and the way is broad that leads to destruction, and there are many who enter through it. For the gate is small and the way is narrow that leads to life, and there are few who find it." (Matt. 7:13-14)
However, IMHO the Protestant churches in the US have (since the so-called Sexual Revolution of the 1960s) fallen down terribly in the duty to teach marriage from the pulpit, to demand marriage classes before marrying people, and to exercise opprobrium when couples living together in sin or parading their relationships before one partner is divorced in front of the children. I have seen all these behaviors ignored or excused, especially when one or both of the "public sinners" is a popular parishioner, a Board member, a missionary or a big donor.
One of the outrages of the Episcopalian's "gay bishop" ordination in 2003 was that at that time, the ECUSA was still inquiring about the sex lives of engaged couples, and made a few of my divorced-but-engaged-again friends step down from official parish posts until the matter was resolved by marriage. The hypocrisy on that end was stunning. But since then, it seems that "anything goes" in many of the formerly mainstream denominations.
The Baptists should defrock this renegade pastor.