'Abnormality' is a problematic word. Something that occurs in a minority of the population, but about 1-2% of it, is still statistically significant enough to warrant being classified differently. I like 'aberration' better. Lefthandedness is found in approximately 10-12% of the world's population, and those that identify as anything on the LGBTQ spectrum (not just homosexual) are 5-7%. Radical acceptance of these people, just like radical acceptance of left-handed individuals, is the only way to resolve the issue, because it's not due to a disease that can be eradicated and cannot be traditionally 'cured' with treatment, pharmaceutical or therapeutic. It will continue to present itself in future generations ad infinitum, and humanity must find a way to reconcile that.