It may very well be that my response wasn't clearly expressed enough. If so, please excuse my lack of clarity. Far--far--from intending to make an assertion that properly conducted surveys warrant immediate suspicion and dismissal, what was being conveyed was a personal feeling--not a conspiracy theory or trashing of sociological science re: human sexuality, but merely a positing of personal (and therefore exceedingly limited gleanings based on personal life experience) interactions with those who are, in my mind, bisexual, yet are averse to 'coming out' even (my observations only) to themselves, much less to any statistician or researcher. There is, as you (IMO) accurately question, a shadow side to owning one's bisexuality? Having both been married to a woman for 15 years and now married to a man for 21, and a father, I know I'm myself not bisexual--not because I find the categorization offensive, far from it--but simply because it was societal pressure which made me feel the great need to be accepted as 'normal', as well as my desire to be. Therefore, I was detrimentally going against my birth orientation (which I fully accept as how we are, indeed, designated to live out our sexuality) in order to fit in. Fifty years ago this was how many felt, and societal pressure was huge, especially when coupled with religious upbringing.
To justify my previous answer a bit more here, using the term 'fluid' is full of pejorative/loaded meanings and a poor choice on my part. At the same time, exploring as I do the world of TikTok and other apps/social media, there appears to be a proclivity of young men (I don't explore the female or trans side of things much) to claim to be bisexual and then when finding their sexual sea legs and inner compass end up admitting they are, in fact, gay. Then there are those who are solidly heterosexual but enjoy being seen as 'curious' or 'open' or 'pansexual' or any number of nuanced shadings, possibly in order to make money on OnlyFans, but perhaps genuinely grabbed by the pleasures men give them sexually.
This observation is, again, an observation--mine--not an assertion. And makes the whole world of sexuality feel and look 'fluid', as in moving purposely away from any sort of usual classification or identifier and wanting to be regarded by anyone and everyone as something no one can 'peg' or name or make permanent.
Finally, what LPSG is, primarily and importantly, is just that--a 'support group'. We are here to lift one another up, and I feel as though your responses do that due to how I feel edified by your explanations and clarifications. I only hope that my replies do something of the same for our fellow readers, including, perhaps even, yourself.