To see how a non-unionized labor market works take a look at the English Premier League. Players claim 70% of the leagues revenue.
Under the previous NHL CBA, an individual player salary was capped at 20% of the team salary cap.
There are 500 players on EPL rosters, and the top 2% the top 10 players claim 3.66% of total revenues. There are 690 players on NHL rosters, and the top 2% the top 14 NHL players claim 3.80% of total revenues. Since the NHL is a world wide market that % would most likely rise.
The reason the owners want the PA because it allows wealthy teams to not have to pay as much on salaries while allowing more teams to be competitive in weaker markets.
I agree the December offer wasn't bad other then the 5 year contract limits & that it took so long to be put on the table.
The fact that these offers continue to be "take it or leave it" without negotiation puts blame on the owners for the lockout.