At second glance, time and partner exclusivity seem to be be limiting factors. So I'm not exactly seeing an "all" consequence.
Do you have any napkin math regarding distribution differences that would support your argument?
There does seem to be a big gap with young people, but overall, the gap is four percentage points. The gap is also much bigger among LGB men vs LBG women which as an aside is interesting in and of itself.
1. https://www.pewresearch.org/short-reads/2023/02/08/for-valen...
The difference in "LGB" categories can be explained by the fact that women are an order of magnitude more likely to self-report as bisexual than men.