Gays tend to gravitate to major cities. San Francisco is sometimes referred to as the "gay capitol of America". However the percentage of gays in the Frisco area is less than the percentage of gays in New York, Dallas, Houston, Chicago, and Miami.
If you bothered to read 10% myth you would have read that gay activists as a political tool and the man who originated the number threw around the 10% number has admitted that it was an intentional fallacious number. You would also have read that the latest and most accurate study available indicates the actual percentage is 1.4% of women and 2.8% of men. This study was presented to the U.S. Supreme Court in support of declaring the Texas sodomy law unconstitutional.
You family is not the general population. I knew a man in Omaha who was the youngest of 7 brothers, all of whom were gay and all of whom were sexually abused by their father. Although I am the oldest person in my family to have come out as gay, my mother has a cousin who is a lesbian and is one year younger than I am. She was sexually abused by her oldest brother; my oldest niece is a lesbian who was sexually abused by one of her mother's adult cousins, was treated with disdain by my oldest brother's second wife, and my older brother did and said some really stupid things in her presence before she entered puberty. My youngest brother was gay. We both developed gay tendencies because of our home environment.
My mother's lesbian cousin has 4 nephews who are gay. 2 are the sons of the man who abused her, one is the son of her older sister (who was also sexually abused) who married an older man she could control (the stereotypical environment that used to be used to show how gay desires are developed). The other nephew who has also changed his sexual orientation and is married is the son of her other brother who is an arrogant demanding expletive who never affirmed his son's identity. This nephew was a male model and an Adonis and is now a well-known cinematographer.
Now you can use your family to try to establish homosexuality is genetic and I can use my family to show that abuse (emotional, physical, and sexual), and other psychological factors resulted in children developing gay desires.
You can point to myths that homosexuality is genetic and I can point to decades of real psychological studies that indicate the majority of gays are gay for deep-seated psychological reasons.
I empathize with you gay friends who are depressed, but to blame all Christians for the actions of a few is as stupid as all Christians pointing to lewd acts committed by some gays to show that all gays are out to sodomize the youth of the world.
You are denying Christians the same justice and respect you demand for yourself based on prejudice and bigotry not truth.