Admittedly, my sample is pretty limited, but I'm friends with a number of gay an lesbian people, but only couple of transgender people. One of my gay friends is more "out there", but overall, he's a good person. The rest of my gay friends are as down the middle as you can imagine. They have jobs, they contribute to society and are generally just good people. One of my transgendered friends is as impressive as anyone you would want to meet. If he's representative of that group as a whole, we need more. The other two are just people with all the same hopes, fears, and insecurities as everyone else. None of my gay friends and none of my transgender friends are pedofiles and none have ever caused a social problem based on their sexual orientation. I've known 2 transgender people who were sensitive about what they were called. I thought it was dumb, but I'm not them and it's not my call.
I've only known one pedophile and was shocked when he was arrested. He seemed like a very normal person, white male in his late 20s or maybe early 30s. I don't know any of the details. He was a high school teacher, and maybe he was dumb enough to hook up with a mature appearing 16-year-old, or maybe it was something worse. I have read statistically that the percentages of pedophiles that are gay or lesbian is well below the percentage of those groups in the general population, meaning that pedophiles are much more likely to be straight. From my limited experience, that is quite true.