Doesn't really matter to me, I reject your god.

All that means to me is that there is a level of inherent weakness within your religious philosophy and traditions. Women want a patriarch of some nature, the fact that their sermons in your church do not reflect this is an internal problem that is deeper than some gatekeeping procedure.

Think of it like this: why would a woman want to lead a sermon if they had been acculturated to your religion's ideology.

A secular comparison of this might be the NFL. Why have no women ever played on a professional football team? There is no gatekeeping to stop them from trying. That first time get fucking spear'd is way more convincing. There is no desire for them to try or continue. It's a wasted effort. It's a bad idea with few positive benefits, particularly compared with doing anything else as a woman. If, on the other hand, women were all over the place in the NFL, playing quarterback and the like, that would suggest that there was something very strange happening to the culture of the NFL, who it's attracting, and who it's disincentivizing.

I'd say your focus would be to answer those questions for your religion first. Otherwise, even if you were to successfully gatekeep, it would only be a bandage over a sucking chest-wound.