1) "why ppl have a choice in the pronouns that they use" - exactly, it's other ppl's choice how they want to refer to u in their conversations (which u shouldn't even be eavesdropping), nobody will use 3rd-person pronouns when talking to u because they will say "you/ your", stupid.
2) "it's my right to use the correct pronouns on me" - no, it's other ppl's right to use grammatically correct singular pronouns on individuals, if u don't want "he/ she" then u shall be called "it".
3) "there are just ppl who are ignorant" - no, we are aware of your so-called "gender identity spectrum" crap but we just don't give a fark about it because what actually matters is your biological sex (otherwise anybody can just anyhow "identify" to enter the opposite sex's toilet duh).
4) "there would be random trolls coming in" - u are the retarded troll who has nothing better to do than jump on the bandwagon of brainless bullshit.
5) "anyone can change how they identify themselves at any point in time" - then u expect ppl to keep up with your bloody mood, even if let's say u flip prata on a daily basis? and then what, does any and every written record which ever referenced u have to be constantly edited to stay up-to-date?
the only thing "fluid" is your brain which has turned to diarrhoea.