Here's what I think is really going on with Singal. The cycle is "Jesse Singal is a transphobe who is literally murdering me," then when asked for a single thing he has ever said that can be interpreted as negative about trans-, if you get a response at all besides "I'm not here to educate you," it's either something completely fabricated, or "well in looking for it I found he's written 500 articles about trans people, why is he so OBSESSED with us, he must be a chaser!"
Obviously if there was anything there they would cite it. The problem isn't any specific things he's said while reporting fairly and objectively on trans issues, it's *the fact that* he's approaching these issues as a journalist. Any observation of trans behavior from the point of "I'm simply going to describe what I see as neutrally as possible" or "I'm going to try to find a verifiable explanation for this behavior with a properly established scientific basis" is what the activists hate, because anyone who looks at the trans movement from any perspective besides pre-judged ideological "allyship" will always see how much nonsense, self-contradiction, predatory behavior, and denial of reality is involved in trans activism. Someone who is not cancellable for a specific statement of "I think trans X is bad" and has a years-long record of credibility as an extremely even-handed, respectful chronicler of trans issues is their worst nightmare, because he will always expose their psychosis in a way that is credible to reasonable people making policy decisions, in a way that a Bible-thumper or 8chan edgelord cannot do without being written off as just as bad in the other direction.
The more Singal becomes Dickgirl Enemy #1 and the more they use the strategy of fabricated quotes to try to cancel him, the more diligent he becomes about keeping records of every interaction he ever has with a source. If someone on Twitter called "TERFLord89" posts a meme about trans stupidity, liberal-minded parents of some 12 year old being recruited by the gender cult will easily find a reason to ignore it, if they ever encounter it at all. When Jesse Singal publishes articles about the effects of giving hormones to children in the mainstream media, he does it with a tone that those people can't write off and 500 pages of citations for every paragraph he writes. This is what the trans jihadists fear most.