Hacker news is not relevant to politics. I don't know why I should put effort into validating other people's perception of what is factual.
Notably, "observed fact" is an oxymoron. You mean observation of something you then produce a statement to lossily refer to. Especially if the "fact" is bound to floating signifiers.
Most of the terms of the alleged "facts" are floating signifiers. Good luck.
You'll find a lot more success appealing directly to peoples' emotions surrounding materially clear situations. Eg it's obvious ripping contributing members of society out of their homes and expelling them from the country is bad for us. But it's the validation of peoples' immaterial fantasies of being raped by immigrants that sustains this material violence. Leaning into analysis of floating signifiers just enables this societal dysfunction.
Facts are useful, but only if they're actually factual. You haven't grounded any of your factual assertions in material analysis. Any factual analysis of "disappearing" is impossible as this inherently relies on your expectations of the potential behavior of the government when the government never attempted to provide a material basis for the justification of violence to begin with.
That is, whether or not you consider "disappearing" to be a valid concept very much relies on whether or not you thought the government attempted to treat people in good faith to begin with. I personally think you're a moron if you trust the state to do anything but look after itself.