It's been all over the Lucas thing. If they don't like a fact, it's a lie that probably originated from here. If they do like a fact, then it's unimpeachable and doubting it is a personal attack that makes you worse than Hitler.
If something does actually come out that forces them to change their mind - usually someone turning out to be 'problematic' in some way - they were lied to, misinformed, didn't have the full facts, basically it's not their fault. If their opponent admits they were incorrect or had a fact wrong, they were deliberately lying, trying to manipulate and gaslight, and it's a usually described as 'very telling'.
These assholes have already ignored pretty much everything byuu actually said and did to focus on Hector's version of events and Farms = bad. This includes having faked his death before. If definitive proof comes out that he's still alive, they'll only remember that he's actually committed several crimes if he repeats what he told Null - that is he was essentially peer pressured into being trans but realised he wasn't.
That goes against the narrative, but even then unless he made a big deal about it he is still more useful as a weapon against us, even with the inconvenience of him being both alive and not a troon.
Really, who knows what he was lying about when it comes to his state of mind. But we know for a fact he didn't kill himself in Japan, and therefore Hector and by extension everyone forcing the suicide narrative are lying, just one more in the pile of untruths that fill their lives. Which is a problem when they try and force the rest of us to accept their lies.