First you would need to establish whether these predispositions were based on nature or nurture (or "soul" since we know that affects channeling in The Wheel of Time). If the difference is inherent biologically or spiritually, then there is nothing outside genetic engineering or Shai'tan's intervention respectively that could allow men to link.

If the trait is based on nurture, then it could be tested. But unless we can already point to male channelers from such a culture or sub-culture with a concrete example, I'm afraid there's little to discuss here, it's just theorycrafting.



While I am no expert on the subject, I've never heard of this notion in any credible context, so I would appreciate a source.

I have heard that men are more inclined to be competitive which could have a similar result to the one you propose.