Platinum Players

So currently I'm bronze 1 I'm not that good at League I usually just play it casually. I'm sick of people in Platinum, in normals, telling me i have no right to talk because I'm not Platinum. A game i just played and about 2 or 3 other games, that I have played have had Plat players in. They always say stuff like "Oh this team is too heavy can't carry these bronzies gg" or "Sorry you have no right to talk because you aren't in platinum" (but this doesn't go for the Plat players that are actually kind). Why do most Plat players act like gods among men and treat the other players on their teams that aren't the same rank like shit. Even when I'm doing better than them, they still act like this. (Also i usually report them for harassment and hope the tribunal system will do something about them).