"All bronze are bad"
"That's a fact. You don't even need to reconsider, just accept my statement as an Eternal Truth. The sooner you realize the sooner you can move on." Random Summoner
The problem is that this is NOT the way our world or - to be more specific - our community works. This interpretation leads only a false conclusion which is based on personal experience and in return doesn't offer any kind of solution to make Summoner's Rift a better teamwork oriented map.
However the real question still reamains unanswered. Are they really THAT bad?
The key word that Random Summoner forgot to mention is called ATTITUDE! That's the only "Truth" I can accept or glorify. If you are strong enough to adapt you're strong enough to earn a higher rank.
Let's say you seek challenge in this game... A skill contra skill matchup... With a champion who needs teamwork to fulfill his/her role... (maybe) In a position where you think noone else used him/her before...
You consider to start with an armor/mr/magic pen standard rune page (for a skillshot based mage) - but random enemy Teemo has 64 AP at lvl 1... You refuse to buy lifesteal/spell vamp/GA - even if your opponents start to stacking it like hell... You refuse to take ignite/flash as first or secondary summoner spell - although all of your enemies have the exact same pattern...
I don't need to continue. You are aware what will happen if I do so. It's your preference indeed, just a matter of playstyle - but you've already failed in their hungry eyes. In order to achieve success you need to follow the rules: ADJUST YOURSELF TO OTHERS.