Why do people force fights so much in low elo?

So I was duo in ranked with my friend, we were both high silver at the end of the season but riot placed us iron 4 after winning placement 1, we climbed up to bronze 4 because apparently thats the limit of what you can do when you finish off silver. I was playing darius, he was playing ahri, we both had the enemy lanes feed us an ungodly amount of kills as well as both having a massive cs lead. Our jungler of course hard inted the enemy jungler, leaving him 0/5 at 10 minutes, and our bot lane just shit the bed because, you know, it's bot lane.

My friend and I were trying to get side lane pressure while our team stood in mid and all died instead of getting vision or pressure, then flamed us for not teamfighting.

The circumstance is this: 2 incredibly fed carries against a team of squishies with their own team being a bunch of fucking telletubbies standing in mid lane wondering what to do. We would get pressure, they would die, then we would lose pressure, and they would force a fight. Is there any way to escape this at all? Or am I going to be stuck here for the entire season? I climbed from the depths of bronze 5 last season, and I sure as hell do not want to re live the pain of climbing from dirt elo up to slightly less dirt elo. Any tips or champs I should pick up to combat this? Any words of wisdom I could say in team chat to get my team to stop throwing during mid game?