Two poor and poorly-run clubs merging would be a disaster. Merge, say, Collingwood and West Coast and you would have a powerhouse that would be so dominant that no one would ever get close to again.Feel free to make a case for Collingwood to merge if you like...
For the record, I think a decision on mergers is something that should be left to the members. If they want to do it, then go ahead. I don't think it will happen any time soon.