So Let me get this straight.
You think when the available talent for a generation is spread out among 30 teams, it's more DIFFICULT to win than if all the top talent was condenced into 8 teams (which you continue to reference but only makes up a small percentage of what I'm talking about.. you should write for CNN).
Let's equate that to today. This is based on CBSSports top 100 ranked players, and filling out rosters splitting top tier and middle tier starters in the league.
Team 1: KD, Bradley Beal, Khris Middleton, Ben Simmons, Russell Westbrook
Team 2: Lebron, Jimmy Butler, Karl Anthony Towns, Ja Morant, Pascal Siakam
Team 3: Giannis, Zion, Devin Booker, Jrue Holiday, Domantas Sabonis
Team 4: Curry, Kawhi Leanord, Rudy Gobert, Draymond Green, CJ McCollum
Team 5: Luka, Paul George, Trae Young, Bam Adebayo, Klay Thompson
Team 6: Harden, Anthony Davis, Donovan Mitchell, De'Aaron Fox, Gordan Hayward
Team 7: Embiid, Jayson Tatum, Kyrie, Zach Lavine, Demar Derozan
Team 8: Jokic, Damian Lillard, Chris Paul, Jaylen Brown, Marcus Smart
So if one of those teams won 8 straight titles and one player won 11 titles.. well, they're the greatest of all time, easily. All of those "8 teams" that you reference are stacked with the best talent available, just as happened during Russell's era.