"I didn't get any/enough ____ so we lost because of that its all the ____ fault"
I didn't get any jungle ganks so we lost because of that its all the jungles fault I didn't get enough wards so we lost because of that its all the supports fault I didn't get any teleports to my lane so we lost because of that its all the tops fault I didn't get mid following his lane to my lane so we lost because of that its all mids fault And so on
Allow me to explain if someone is saying any of these after they themselves have died this is called not taking responsibility. If someone dies it is almost always their own fault. The only exception to this is if example ADC gets out of position and support jumps in to take a bunch of damage to keep it away from the ADC sacrificing themselves so the ADC will live. This is pretty much the only time that someone else can cause your death. If you die it's because you made a mistake.
If you die because the enemy jungler ganks your lane. You were out of position which allowed the jungler to do so. If you had proper ward you could have moved further forward. If you don't then don't move forward its that simple. If you don't have wards and die due to vision once again its your fault for knowing that and still choosing to move forward without wards. If you are losing against the opponent in your lane it is because they out skilled you so YOU are doing bad. Its not the junglers fault that YOU are not better skilled and didn't come to babysit you to make up for YOUR lack of skill. If their top teleports to your lane and gets a kill but your top doesn't then why were you in a position to allow their top to teleport in behind you with that extremely long teleport time. If mid ganks your lane and your mid doesn't follow and their mid gets a kill. Then why were you in a position that allowed you to die? If you had simply not been there their mid would have walked all the way to your lane losing CS only to have to turn around and walk back putting your mid ahead. So yes its your fault for dieing almost always. If someone else feeds and the enemy is extremely ahead then avoid that player or only fight that player as a team. If you get caught by them and die its your fault. If you die in a team fight for them to die. You over stayed in the team fight and its your fault.
No one likes getting blamed for someone elses mistakes this is just annoying and frustrating. Its not positive towards the gaming environment and should be reported as its toxic behavior so if you see a player doing this please report them.
So TLDR if you die its your fault and accept that take responsibility. Also report anyone doing this so we can show we don't like this negative attitude in our games.