Its such a daft, backwards way of looking at the problem. Of course there aren't too many clubs, there are too few players, and no matter how many clubs are disbanded, there will ALWAYS be too few players until international cricket returns to FTA tv.
Merging is just giving up. It solves nothing. Half the players give up anyway.
There are three sensible sizes for clubs:
Big City clubs, with 100s of members, a big ground with 2 pitches, 4 league teams, including a premier league side, 2 midweek teams and large junior setup. Annual turnover of ~£20-30k
Medium suburb/village clubs, with 50-60 members, their own ground, 2 league teams, 1 midweek team and a small junior setup. Annual turnover of ~£5-10k
Small clubs, with 15-20 members, just 1 team, no ground, basically just a bunch of mates. Annual turnover of ~£1k