Part one of two (part two)
This right here is why Sherlock the series is different from other “tortured hero” works, particularly American ones (looking at you, Elementary and House, though I did love a good chunk of the latter’s run). Sherlock is not going to be “fixed.” The show doesn’t believe Sherlock needs to be fixed.
Does he need to be more aware of others’ feelings? Sure.
Does he need loved ones in his life to care about, and to care about him? Yes.
Does he need to show appreciation to said loved ones? Absolutely.
But he does he need to change who he is? No.
Other characters think he’s weird, and the show says, “Yeah, he is. And?”
No one, not even his best friend, knows his sexual orientation. The show says, “So what?”
He’s a virgin. The show says, “He doesn’t want to have sex. Who cares?”
The whole point of this scene between Sherlock and Mycroft is that being different isn’t bad, but isolating yourself is. Both Sherlock and Mycroft are strange ducks, but whereas Mycroft is lonely because he wants to put himself above it all, Sherlock is not. Sherlock realizes that being lonely doesn’t make you special, the beauty of life is in finding those people who will love and appreciate you as that strange duck you are. Sherlock is needling Mycroft in this scene because he wants that for his brother.
"He’s different - so what. Why would he mind. Why would anyone mind?"