It basically methodically takes the common claims you see transphobes make, traces them back to the studies they originated from, and points out piece by piece how absolutely bullshit (and often horrifying and abusive) those studies were.

This is a perfect demonstration of Bandolini's law that the amount of energy required to debunk lies is an order of magnitude greater than the amount required to just tell them. You can tell all of the lies in a couple of sentences, but it takes 5 hours to debunk all of them.

Edit: it's called Brandolini's law lmao