But that doesn't mean that Magneto is a member. By that logic Spider-Man, Captain America, and other heroes would be members too. We are going by the membership rosters of both teams in the cartoon series that they are a part of. Those are the rules you yourself have put down and Magneto never joined the team.
It's as if you completely ignored everything I have said
I listed every member in the first FREAKING page
Founding Members: Superman, Batman, Wonder Woman, the Flash, John Stewart, Sheira Hol, and the Martian Manhunter
Other Members: Steel, Supergirl, Zatanna, Dr. Fate, Aquaman, AMAZO, Vigilante, Green Arrow, Speedy, Shining Knight, Crimson Avenger, Starman, Stargirl, STRIPE, the Question, Black Canary, Metamorpho, Mr. Terrific, Atom Smasher, Ray Palmer, Captain Marvel, the Huntress, Vixen, Hawkman, Orion, Elongated Man, Booster Gold, Fire, Ice, Dr. Light, Wildcat, Aztek, B'wanna Beast, Creeper, Blue Devil, Crimson Fox, Dr. Mid-Night, Hawk, Dove, Etrigan, Waverider, Vibe, Rocket Red, Sand, Plastic Man, Etrigan, Long Shadow, Obsidian, Nemesis, Johnny Thunder, Thunderbolt, Gypsy, Hourman, and Commander Steel
Johnny DC Members: Black Lightning, Adam Strange, Firestorm, Blue Beetle, Mary Marvel, Power Girl, Jay Garrick, Zauriel, Bagman, All-Star, and the Phantom Stranger.