Sbmm is broken

I was playing Plat IV ranked games and that was easier than pubs. Now that I'm in Diamond III and the pub lobbies are the same skill level as with my ranked games. Doesnt make sense to have two high skilled lobbies when I want to relax and play a BR game. I understand the low level players not wanting to match with higher tiered players, it can make the game very frustrating for someone first starting out. At the same time though how else will they get better if they dont face higher leveled players. Pubs are meant for a non-sweaty game, not all this camping. Im not asking for a level 1 to face an Apex Pred, just add some better logic to the queuing system and tune down the SBMM. Im sure SBMM wont be removed but its going to drive a lot of players away.