I think the more vocal women in the TWATW/TWAM front tend to be much more militant and many of us men don't generally agree with them except on this one issue. Places like GenderCritical seem to be more appropriate for the discussions than here, but as you've seen they're not generally male friendly.

Like so many things it's tough to be moderate on issues, I, like you, keep my comments to myself most of the time except those rare times when it makes sense.

I think the other reason men aren't supporting biology is they're being indoctrinated by the woke cult, well, if you support LGB then you must support T and aren't fully understanding that the T narrative/TRAs are attempting erasure of women/sex rather than simply 'transwomen/transmen just want to be left alone'.