Complex sentence: A strongly heterosexual individual who is fearful or hateful toward those who identify themselves as homosexual and bisexual may be seeking to counteract deep-seated and often untouched homosexual desires.
Split into simpler sentences: A strongly heterosexual individual who is fearful/hateful toward those who identify themselves as homosexual and bisexual. The person may be seeking to counteract deep-seated and often untouched homosexual desires.