Serious Your opinions on being "Born" a sexuality

There are a lot of opposing views on this topic. Some claim there is a difference between gender and sex. Im willing to agree some people feel they are the wrong sex Gender dysphasia. I dont know if people are born gay or if its a learned behaviour. Studies have been done that show homosexuals are sexually attracted to their sex over the opposite sex so it isnt just a verbal statement. There is medical evidence to show they really are sexually attracted to the same sex.