Couple reasons why people can't climb

Feeding and going 0-4 before 10 minutes

feeding shutdown gold constantly kdas like 5-5 will show this

Feeding and not wanting to let your team carry you

Feeding and just hopping for the team to make mistakes

People really underestimate feeding or they just try to make it seem like something that its not a big deal because they don't want people to feel bad about how they play this game.

Feeding always put the team at a disadvantage and IDC if you're having a bad game or not. The only excuse I'll understand is if you've been getting ganged by more than 2 people all game. You must also understand that you are behind after feeding or dying all the time so just group with the team. Assist gold is way more easier to get then solo split pushing a lane with no towers you can also help your team safely get tower gold.

Now feeding shutdown gold is the top 2 most problematic feeding that never gets addressed. I'm talking to you yasuo players out there who finally didn't go 0-10 in lane and feel the need to 1v5 when you're only 3-0. You people need to stop. Everytime you get a double kill you become a walking slut who just gives up the goods for no reason just because something hot comes her way. 15-15 is not a good kda 15-13 still not a good kda. You have to remember just because you are super fed doesn't mean your teammates are and as the fed player you have to be there for the team.

The people who say it's over when they are the only ones doing bad. Just afk the game I have no advice for you. You aren't beneficial to anyone. I'm talking about the people who feed constantly while their teammates are ahead and feel the need to spam surrender votes.

Those people who feed and say it's OK the enemy team will make mistakes are hopeless you'll never improve if all you rely on are mistakes