It wont help equality one jot.
I respect your opinion, but you are stating opinion as fact here, and I disagree with your opinion.
a. it creates a partition, the Radfems are essentially creating a ghetto for themselves. People actually listen to people who are worthy of listening to, regardless of their person.
This is not true. As I have said, there is quite a lot of research to show that people do not just listen to people worthy of being listened to, they are conditioned to listen more to men, and to give men more space to speak.
Ask yourself honestly: if people 'actualy listen to people who are worthy of listening to', does that mean there were no eloquent voices for the entire history of slavery in North America, right up until it ended? No. Does it mean there were no eloquent voices speaking out against the murder of jews, gypsies, and disabled people during the Holocaust? No.
Think about what you are saying for a minute here.
By secreting themselves away they actually compound their perceived problems in to real ones.
Which problems are 'perceived'? You are dismissing an agenda without engaging with it - why?
Their views are likely to be dismissed due to the method of their formation, not necessarily for any other reason.
More fool the people dismissing their views. This conference is for the people attending. Maybe those people care about the views being expressed, huh?
b. It wont help them take themselves seriously, because they are doing all of this thinking and talking in an artificial environment. If the group aren't comfortable discussing the ideas with others are the ideas worthy of discussion? Or do they think these ideas will never cross the 'Radfem'/Rest of world interface? In which case are they worhty of discussion?
Incorrect. I participate in a couple of (very small, very un-activisty, very safe) woman-only groups and I gain hugely from it on a personal level. The opportunity to be in a woman-only group and talk helps me hugely to take myself and other women seriously. Therefore, all on my own, I disprove your statement. 
By not having other parties involved, even in watered down and tethered form, their ideas will not be correctly formed and thus may attract derision.
Incorrect. You provide no evidence.
If the groups are 'vulnerable' how will them ever gain the confidence to shed this vulnerability? You don't just run 100m to get fit. The very fact discussions take place to teh exclusion of all other points of view means the discussion is essentially pointless.
They will gain the confidence through these groups. See above. 
c. Closed groups such as these are devisive by their very nature. If they are not open to the whole community they invite suspicion.
Incorrect. Why do you belive so?
For example, a quick check of my google shows a radfem speech troting out nonsense about the burning of witches being evidence of men hating women...
And it's so convincing you provided a link. I see. 
You cannot expect anyone to take that seriously, can you?
*The author appears to think 9,000,000 women were burned at the stake...
No mention that that figure would have left Europe with no women nor wood for fuel. There was no mention of the large amount of men that were killed for witchcraft.*
Maybe you should check out this discussion on FWR, right here. You will find several people, all feminists, arguing both sides of this one. Once again, your argument fails because you assume all rad fems are the same.
Nor even the fact that the burning of witches had very little to do with their sex, but more their religion... hence the number of men also killed.
This is incorrect.
And if such conventions spark terms such as 'menhate' one should question their validity. I could question the term 'radical feminist' also, especially when connected with such terms as 'menhate'.
I've not seen anyone use the term 'menhate' except you. Your argument is therefore groundless.
A force with no resistance is not a good thing, just as a force with too much resistance
... is what? Is this a joke without a punchline?
If the audience of such conventions are truely vulnerable, how do we ensure they are not abused by those they perceive as their leaders?
'We' don't. And the leaders ensure it by, erm, not being oppressive. It's very simple. 
Interesting you defend the equality compatibility angle almost immediately.
I'm so pleased you think so.
Now ... any points that
- Make sense
- Are relevant
- Don't make me wonder if you're simply incapable of engaging with an argument.