Rank Match are so easy climbing silver aren't they?

For the whole game Lee been lagging and constantly bring up his lag and blames lag. So its our fault we deserve to do lose? why isnt the enemy team lagging? oh its my fault not lee's fault that I cant carry. then Lee start feeding talon. not intentional but he think its a good idea to fight people with bad ping. talon get fed and start camping bot then goes to my lane "top" mean while duo lane leona and twitch starts dying a lot and gives up in a rank game which we could have turn around. so leona afk twitch says "leona isnt coming back" we ff no then twitch afk and says "open mid" before leaving so now its a 3v5. yeah those afk deserve to get punished more but its "MY FAULT" I deserve to lose LP cause of 2 afk duo and a lagger. hey man atleast lee tried. totally balance its like us 3 are challenger level and can outplay 5 people who are fed. man I wish I was that good. its not like we get the gold those 2 afk had before leaving or get a cd ap ad or hp boost or nothing just 3 ppl vs 5 ppl but how do we win a 3v5? are we suppose to be 100x better the enemy team?? because this game is base on matching people with similar skill level and you want us to win with a crippled team vs fresh healthy team and most of all? if we gave it our all with 2 afk and lose and didnt lose "LP" not necessary win but not losing LP that isnt right I wouldnt be mad but hey we could had 3v5 with a disadvantage