Heres how I see it.
God made humans right we have emotions and feelings, were designed to fall in love thats one of our feelings. So if we fall in love with a girl whos not muslim or whatever thats not our fault, we havnt been created to only fall in love with our kind.
From what I remember the restriction is marrying any raced girl as long as she is a muslim. Now what messes it up is the Pakistani culture which is stupid in many ways, our parents strickly want us to get married to Pakistanis so thats why we feel we cant have girlfriends because they go on about that too.
Also your (were) all young men we feel a bigger attraction to girls and you can't help it if you love someone.