"In my opinion,Morris dancing should be decided on merit /ability not gender."

As an admitted non-dancer why do you place such importance on your opinion in this matter?

What about freedom of association?

"Morris dancing is the only form of traditional music that operates a Gender BIAS."

No, that just is not true.

"I would rather see a good mixed morris side,rather than a bad Male Morris side"

A bad morris side of either sex won't impove just by becoming mixed. The fact of the matter is that some Morris teams are better than others and their gender or lack thereof has nothing to do with it.