Just because you argue against it doesnt mean it should be an end all be all thing. It is your opinion and your view which in terms doesnt affect you. It is like me saying I dont like Pepsi and it shouldnt be consume by others. It is simply an opinion because there people who actually disagree and like Pepsi. I mean matchmaking in the game only affects players who use it while drinking Pepsi only affects the person drinking it. Matchmaking isnt going to stop someone who using lfg but it does allow players to still get players rather than relying on a LFG that has the tendency to become toxic. Everything you just mentioned however has the same opportunity of happening with LFG. You can get the same type of blueberries in both matchmaking and LFG but not allowing one to be a thing simply because you are afraid or against it holds no value.