With the current setup mods can soft-delete any post but they cannot ban anyone from the forum or see ip adresses.
So a mod could temporarily make this forum unreadable for until the admin is able to intervene and undelete the posts.
Defining sex after by chromosomes (female = XX) would also throw intersex people under the bus.
The fearmongering about transwomen in bathroom has already hurt several maschline looking cis women resulting in them being throw out...
And no even if 1 billion fertile females would appear magically you should still fight to maximize your reproductive success and prevent your enemies (other males) from reproducing.
Unless you are fucking ovulating females daily you are not maximizing your reproductive success, a single male...
You clearly dont understand reproductive dynamics, if there are more females than males the average reproductive success for males would bd higher.
Thus the equilibrium is to have 50% being born male.
The males that are destined to failure can be transitioned to female or euthanized.