Ranked is completely ''scripted''

Here's the thing,

When I first started playing ranked almost 2 months ago I got my primary role like 75% of the time. How it should be. I main a champion for over 2.5 years and I only want to play that certain champion as much as possible. I climbed from Gold 1 to Plat 1 really fast and had a very good winrate, but when I got to Plat 1 everything changed. I was 1 win away from hitting Diamond but that match I got a Lee sin top so that one was lost.

Now I get my secondary role 90% of the time, and I'm not joking. In the last 10 matches I've played ONE normal ranked game where I get my primary role and there's no AFK or whatever. All of the other matches are one-sided defeats where I get my secondary role and every lane goes 0-4.

I've had 4 AFK's and 2 intentional feeders just in this week where I lost all these matches. I've had maybe 1 AFK and 0 intentional feeders in all the previous weeks from when I did win and got my primary role.

If you don't believe any of this, just compare my match history of this week to a few weeks back.

Now I'm not sure if this will keep happening and I keep getting my secondary role pretty much every game while every lane loses big time, but if it does I might aswell just stop playing because I don't even get to play the champion I've been maining for over 2.5 years.

And this isn't just me, alot of other people stated that they suddenly got their secondary roles almost everytime and have had extremely one-sided matches.