2. Love the sinner and hate the sin is a Christian euphemism. You are now making an appeal to Christianity - which is typical of the religiously illiterate. Namely, you are asking for all the Christian kindness but none of the Christian rules. Jesus was kind to sinners - but he also said "go and sin no more" (look it up).
3. Christians are uncomfortrable around sin - that is not new. But you are missing an absolutely critical aspect of the debate. In this case, the sin and the sinner (homosexuality and homosexuals) are being trumpetted as not sin at all and rather, something to be "celebrated!" It's as if you had a group of people who not only were willing to drink and drive but were also demanding that drinking and driving was no worse than sober driving; and furthermore demanding that we "celebrate" drinking and driving.
Hogwash, and you know it.
Here's what Hunter didn't say: "If I had a gay teammate, I wouldn't be okay with his lifestyle, and I might try to get him to change his ways, but I'd still be kind to him, as I would to anyone else." That wouldn't be "celebrating" homosexuality, and no one asked him to do so; and while I still wouldn't agree with his beliefs, I'd at least respect him more.
But instead, he said he'd be uncomfortable even having a gay person around and thought it would "divide" a team. If you think that's Christ-like, maybe it's you who needs to read your Gospels again. I'm not a Christian, and even I can tell that attitude is more like that of a Pharisee than that of Christ.