The bible isn't pick and choose. But the trinity is the Father, Son and Holy Spirit not the Father, Son and the Bible. Faith and belief is about a living, breathing, real-life doctrine inspired by the spirit not a life and belief system constrained by age-old interpretations of contextual literature. The bible says all scripture is God-breathed- God continues to breathe new life into scripture now and always through new understandings and Spirit-led reading. If I wrote you a manual for how to live your life when you were 15 it wouldn't all be perfectly transferable to a 50 year old you but many of the principles behind it would still be applicable and ageless. Context makes a huge difference. It's not humanely possible to follow scripture to the letter and avoid any picking and choosing, we all have to do the best we can and have the right heart about how we live our lives.
Anyway, not going to keep arguing the point as your posts are troll-y but all I'll say is if you think being gay equates to 'bumsex' then you are on the wrong planet. The whole issue isn't about genitalia but about how the church is supposed to respond to two people in love who, aside from having similar genitalia, are very much like any other couple and in a lot of people's eyes deserve the same level of respect as any straight couple. Whether you agree with TF's theological views or not, the question isn't really about sex at all but about whether he believes in inclusivity and equal rights.
If you're not a troll and genuinely need to work out the answer to this for yourself then there are plenty of books and articles discussing the point. I can't imagine living inside a mind where there is no room for grey areas or for bringing real-life emotive issues into logical debates about right verses wrong. So best wishes to you as you continue on your journey.