I'm having a hard time understanding what you mean by "intimate and valid placenta". Was that a spelling error?
Regardless, I believe that it is incorrect to say that just because you "know in your heart" that you are something that you're not means that it is authentic. It is actually damaging to your psyche to believe you are something you are not. When the question arises "who am I" and what you believe you are contradicts the reality of what you are, it is a source of great confusion and strife. It is a medical condition called Gender Dysphoria, as I'm sure you've heard. It is not a good idea to indulge in these thoughts or obsess over them. If a person with dementia tells you that they are a giant speckled Easter egg, it doesnt do any good to tell them "yes Mrs. Smith, you are indeed a giant speckled Easter egg." Instead, you would try to distract them from having such thoughts by engaging them in a different subject, rather than play into their delusions.
It is my opinion that people with gender dysphoria should not be encouraged to indulge themselves in the delusion of being the opposite gender. There is no scientific way to actually change your gender. Even if you go through the process of gender reassignment surgery, you will still be what you were born as. It is encoded into your DNA, and your feelings do not change that fact, no matter how strong your feelings may be.
With regards to Northi's question, the problem lies with the fact that they were asking for supernatural forces to change their appearance. This desperation is not good or healthy. That is a classic case of dysphoria, which is a mental illness, and should not be encouraged.