Girls getting drunk and making out in clubs in most cases are not gay.  That power of suggestion you mention is in many cases coming from guys who either egg it on or whose attention these girls want to get.  Two girls making out is not two girls having sex.  Two girls having sex is gay or at the very least bisexual behavior.  There is a horrible double standard applied to gay women vs. gay men and two women making out in a bar has become socially accepted. There is a hypocritical subset of people who are anti-gay, but get incredibly turned on by two women getting together (spoiler alert - 90% of the woman on woman stuff in adult films isn't done by actual lesbians.  They are really only doing it for the money.  Also..  that stripper really isn't interested in your looks or personality.)   I have heard of zero cases of a straight person identifying as gay just because they want to fit in.  Despite social advances, you may want to ask yourself how that would enhance someone's identity as "fitting in."  To answer your question of what being born that way means, ask yourself when you realized you were straight?  The truth is young kids should not have much of a sense of sexual identity in the early years of their life.  Maybe some self examination to establish things that feel good.  Some people get crushes in grade school, but that's about it until their bodies become a little more developed.  The truth is many gay people do not realize right away that they are gay and when they do, coming out is something that is not easy for most as there is an element of anxiety about their self-realization.   26% of kids who come out to their parents are kicked out of their homes.  That means 1 in 4 parents who swear to love and provide for their kids only do so if their kid is straight.  That is why a large percentage of young homeless people are gay.  Back to your point, sometimes people experiment.  I did.  It lasted about a nanosecond before I said, "I have no interest in this."  For some people it might take longer.  If it isn't your life, what difference does it make?

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