I don't know the stats off-hand but I imagine there's more MTF trans than FTM and I imagine the prevalence of gay is higher than lesbian.
By pushing the LGBTQ+, my hypothesis is that is removes more men seeking women from the dating market than it does women seeking men. Thus the supply of men is reduced and the demand for women is reduced as an overall impact of LGBTQ+.
Thus, were LGBTQ+ to not exist, would that make it even harder for straight men to compete for women?
"dating" is itself an anti-male practice
The concept that young women get to judge men and choose from amongst them is a throwback to failed matriarchal tribalism.
Unfortunately our communities are much too fragmented to have the infrastructure that supports the superior method which is arranged marriage.