I think there is some confusion. Most people dont understand that Valorant has 2 leagues - one is open to all VCT circuit which is 100% men right now and then the GC which is meant for women AND marginalized genders (basically no cis-men).
Cis-women are open to participate in both. GC was never meant to be for only cis-woman so how could they complain?
Having said that - I do agree biologically, psychologically, socially - people born as male sex have an advantage (as of today) even in video games. This might make an argument for a third league for cis-woman only but asking GC to be cis-woman only, is in fact just transphobia.