wtf is this ranking system

Well here's the thing riot. Today I yet again did my promos and failed due to boosted teammates. I was silver last season and got demoted to bronze 4. First off wtf how that happen. You think that's bad well the story gets worse. I thought well ill carry myself out of bronze. Well that's just great. There needs to be a better balance on who plays who. First off the losing out ways the wins. Although it should be that way to make it so true elite players get to the top it still ends up you can get matched up with bob the builder 4 times in a row making playing ranked just too unpredictable. Meaning getting into silver and leveling your way up takes skill, but it's also a lot to do with luck. The LCS has not that much to do with that. It's just your good or your not as good. No matter how good I do sometimes Bob doesn't know how to click q and that ruins the gaming experience for me. I think riot should create a preliminary set to test real skill. Playing promo games doesn't do that. If a rating system doesn't get put in place then people like me our screwed and then why should I play league if my goal is to get good. If you won lp based on your stats that would solve the problem. Is doublift shit cause his team is not doing so well. NO OF COURSE NOT. That way you would win lp based on how u did. Now although a simple but not helpful version of this is in play it doesn't negate the fact that it doesn't mean anything when u get an s and carry a game and u get 4+ lp then norm like wtf. Also if I go 9/2 and help other lanes and do really good but the rest of my team feeds I have no control over that so I should get positive lp even if I lose based on how good I did. See if you win but u got carried hard then u would receive very little lp or negative if you were really bad. If you guys feel what I'm saying share this and hopefully riot will come to there senses