This "pastor" is committing a far more grievous sin of direct hate against his own brother. He slandered him and told him to kill himself -- and he cursed God's name in the process of doing all of this.
I had to research Pastor Logan Robertson.
Anyway, is what he said right? He is clearly missing the point of the gospel. To begin, while the scriptures speak directly on homosexuality, it says nothing about promoting homophobia. And in fact, the point homosexuality being wrong is because it's a disruption of God's sacrament of matrimony. Homosexuality isn't the only disruption for it -- polygamy, incest, divorce, open marriages, abuse, etc. etc. -- these are all things the scriptures speak against directly because of matrimony. And the main reason why marriage is meant to be preserved under God's blueprint is for Godly charity, not hate of those who disrupt it.
This pastor is being a major hypocrite because 1) he doesn't understand why this passage says what it says, he only knows what it says. 2) As a pastor, he has an obligation to live a devoutly charitable, manly, and wise life. Instead, he responded as a hateful and childish fool. 3) There is a such thing as tough love -- you say exactly what needs to be said knowing it may hurt and even create division, but you do with the hope that it may sink in and help the other person. I wouldn't be surprised if he was masking this statement as "tough love." It's not. It was hate. And to tell someone to kill himself, you may as well say this to Christ himself, because our love for mankind is supposed to be caused by our initial love for Christ. I have seen, so many times, people demeaning others and saying absolutely horrid things and claiming it as tough love. "Well, Jesus tossed over tables and yelled at the heretics and peddlers." This sort of false justification for speaking hatefully without filter is such a problem.
Pastor Logan Robertson, if he hasn't resigned or been kicked out of the pastorate, he absolutely needs to because he does not have his act together. Can you imagine someone like this leading a flock?