This reasoning by analogy is at the heart of the error being made in the brain uploading debate. Of course a man can become a woman. A box of chips and plastic cannot become a human. That you think the two are equivalent because I am stating what the follow on consequences of that decision to accept the premise of chips and plastic being considered human is the absurdity I am trying to point out to you, but you don't get it. I am not arguing about the trans issue I am arguing about the mind uploading issue but you are conflating the two in your brain because you are reasoning by analogy.
I could have replaced uploaded person in the above with "my purely imaginary friends" and maybe you would get where I'm trying to go with this? I am trying to think of something more absurd than that, but I am out of ideas.
Like my purely imaginary friends should have the right to vote and thus I should get 10000 votes because I have 10000 imaginary friends and if you don't let me, you're an imaginophobe! My purely imaginary friends all have to go to the bathroom and thus the bathroom must remain empty for their privacy during the whole day while all 10,000 go to the bathroom!
You would tell me I am out of my mind and that's absurd, and you'd be right. My purely imaginary friends don't exist and have no rights you'd say. I of course would call you an imaginophobe and get you banned from social media. However, you might think that my purely imaginary friends are being discriminated in the same way that trans people are being discriminated against and thus it's a totally valid claim I have because you are reasoning by analogy. Gee, this sounds similar to that other argument I believe, so it must be true!
There is a point at which a concept is absurd and just because it analogizes with a previous civil rights battle does not mean that it's valid because the underlying premise is false. Just cause it's like the previous civil rights battle doesn't mean it's the same thing.