Let me just make it clear, Klaw: you do not think that a person can transition from one gender to another; therefore you don't even believe that transgender people exist, that they're actually all just people with mental illnesses; therefore you think all trans people are crazy.
These are your beliefs, from what you've stated, no? So why are you so hesitant to be labelled a bigot? Because your beliefs are literally bigotry. Just own it, man. Own it.
Like back in the day when homosexuality was considered a mental illness. Your past equivalents would be like "well them faggits can sleep with whoever they like, I don't mind", but their beliefs would still be that gay people are mentally ill. Thus you and your forebears believe an entire group of people are just crazy lunatics; that is easily classified as prejudice and bigotry.
This is just basic terminology stuff here, man. If you don't want to be a bigot then start developing your beliefs so that they aren't literally bigotry, lol. You can't be a bigot but still get virtue signalling points because you're willing to, in your view, 'call a man a woman, if they so please'. That's not how it works.