I feel like a lot of these numbers, both the "estimated" and "actual" are just outright fucking wrong. Every single person I grew up with was at least some level of gay or bisexual. I get what they're going for, but they're also dramatizing it by picking more extreme numbers. Like I'd bet that only 30% of people are actually, truly cishet, if not even lower.
Then there's the problem of a single number of "estimated", which can only be an average number. Which contains, likely, some juicy demographics data, assuming they actually polled enough people and kept all the information. I'd be curious to see graphs for each and every number presented here.