1. The vast majority of trans people don't deny their own biology, whenever this argument is used it tends to be a massive straw man completely missing the point. No reasonable person says that there aren't inherent genetic differences between sexes, that's why HRT exists as an option for trans people and people that experience gender dysphoria in the first place; to change some of these things and alleviate the stress they feel.
2. There is no substantial evidence that being trans is inherently harmful. If you want to bring up suicide statistics, go ahead and not think about how there are people that experience dysphoria but choose not to transition and probably have the same likelihood of attempted suicides, if not more because they aren't actively getting help for their condition. Having gender dysphoria and being transgender are mutually exclusive, and one is a result of treating the other.
3. Narcissa wouldn't even dignify your views simply because of how outlandish they are to some one who knows a thing or two about trans people, so why even bother.
4. I'm not here to white knight Narcissa, I would just like to maybe shed some light on some misconceptions brewing here. I'm also trying to be as civil as possible so, take that how you will.