I'm not specifically focused on anything, I just mention a single well-known fact (which you can easily verify) to dispel that I'm just "voicing my intuition" and "not based on anything".

Now if you sincerely believe ugly people face even worse persecution than this, go ahead and argue this with the knowledge and evidence you have. Don't just poison the well and move the goalpost - that makes people assume you are not arguing in good faith.