If he genuinely believes it is ethical to experiment on the brains and bodies of children, so that data can be gathered, he is a dangerous idiot.
It pains me to say it, but if Baroness Cass also believes this is ethical, she is too.
I don't mind if Streeting and Cass believe that everyone has a gender identity. In fact, I found it helpful that Cass clearly does because her report helped by highlighting that even a believer was concerned about the unevidenced "treatments" that had been delivered for many years. I had hoped that perhaps both of them were banking on this trial failing to pass as ethical. That's certainly what I had been expecting.
But these quotes from Streeting suggest he's all for this mass experiment. And if Cass is foolish enough not to spot that this trial is as low quality as the ones she's already reviewed as "weak", both of them are little better than Mengele. I believe he also kept data well when experimenting on children.