Why is Teemo still a champion?

I know removing a champion is unprecedented, but his kit is antifun. and if he was given a rework to no longer be antifun he wouldn't have the "spirit of teemo" anymore. So just remove him.
He may or may not be good in high tiers, but everywhere else, namely normals and tiers where people don't ward and have zero map awareness he can just place traps everywhere. To counter him you have to be ultra aware of where he is and shut him down quick while he's splitpushing. You can't do that in lower tiers because people don't ward and don't often have good teamplay. i don't care if you should ward or if better players are map aware.
Also the gameplay strategies for winning change dramatically based on whether or not the enemy has a teemo. It literally is the difference between do i have to worry where i step even if there is nobody nearby. teemo can kill someone from anywhere. they just have to step on a trap at low health. Riot has done things to nerf global abilities, such as reworking certain global passives, or way back when limiting pantheon's ult range. and now S4 made running around with true sight impossible we can't even trap clear fast enough. teemo gets a shroom every 20 sec or something. if all five teammates got sweeping trinkets, every 60 secs we could get 0-5 traps removed depending if we guessed correctly and got lucky. at best we could keep up with him, at worst the team wouldn't go sweeping trinkets because it's low elo and they don't do that.
And I am not saying this because i just got dominated by a teemo. In fact my recent game we dominated him. I am honestly saying Teemo is anti fun. He's more frustrating to the enemy than he is rewarding to the Teemo player.
Please, just delete his resource files in one of the next coming updates and empty the recycle bin