Sometimes you have to help more than just complain. I understand that sometimes we legitimately get bad players. I myself have sucked horribly in some situations. I just take it with a grain of salt and attempt to teach and assist other players in being better.
Instead I see people just randomly blaming everyone else except for themselves when it comes to ranked games. Sometimes team comps have a lot to do with why you are getting your butt kicked in your lane. Yes, a lot of it has to do with skill as well but their ELO will put them with equally horrible players and if you are as good as you say you are then your ELO will increase with time.
If your support doesn't know how to ward. Spend 75 gold and place a ward and point to it and tell him to keep it warded. I bet you he'll never forget it in the future. Teach people how to play and your experience will be better. If you don't like solo q then find a team to play with so you know what you're getting yourself into.