When we're talking about how a sport functions, how many players and how much some of those players can affect a game or a season absolutely matters. I'm not moving the goal posts. You're the one who compared the Dodgers to the Patriots and Chiefs.
If you have peak LeBron James and you try in any way, there's a pretty high floor to how good your team will be (assuming health of course). If you have peak Tom Brady, the same holds true. Like can you imagine either of those players making the playoffs once over an 8 year peak? Over 17 seasons, Brady won 12+ games 13 times. The other four he won 10, 11, 11 and got hurt one year. LeBron was a lock for 50+ wins for a decade plus. Meanwhile Mike Trout won 90+ games once.
So in football, if you luck into Patrick Mahomes, Tom Brady or Peyton Manning, you're a dynasty in the making. In the NBA, if you luck into Michael Jordan, Tim Duncan or LeBron James, you're a dynasty in the making. But in baseball if you luck into Mike Trout, well, not so much. Because you can't just let Mike Trout take 40% of the PA's. Or you can't let a pitcher face 40% of the batters every game. The sports are fundamentally different, which is why it's wrong to compare them.