This is spot on. This psychological barrier is probably the number one obstacle to a wider recognition of the existence and extent of this problem.
People like me who challenge the science behind the diagnoses of SBS face an absolutely unprecedented and unreasonable pushback, like I've never seen in any other area. Basically everyone who has worked on this side has faced threats, insults, personal attacks, cancellations, boycotts, and so on. The "cognitive bias" you mention (does it have a name? perhaps cognitive dissonance?) is a likely reason for this amount of antagonism.
People like me who challenge the science behind the diagnoses of SBS face an absolutely unprecedented and unreasonable pushback, like I've never seen in any other area. Basically everyone who has worked on this side has faced threats, insults, personal attacks, cancellations, boycotts, and so on. The "cognitive bias" you mention (does it have a name? perhaps cognitive dissonance?) is a likely reason for this amount of antagonism.