I'm platinum, but it's like I'm diamond

Yeah the matchmaking is really fricked up.  Im plat 4 and am constantly being killed by masters and current preds.  Id say my lobbys are usually 45-60% people above me.  Im really tired of getting killed by a full team of preds and master who are obviously in a party and wwaaayyy better than me.  I stand literally no chance against them, and when they kill me I still end up loosing RP, which is totally unfair.  I cant even camp or just try to stay alive for placement because the thirsty preds end up hunting me down for extra RP.