Fix or at least explain matchmaking please

I'm bronze 4 trash but hear me out. Recently, I have been playing against many silvers and a few golds here and there, a lot of premades too. What's up with that Rito? And I know what you're going to say, it's made to be balanced.

Let me give you an example, ie the game that prompted me to make this discussion after having a couple like this over the past few weeks. My team: 3 unrankeds, me - a bronze 4, and a gold 4 but was inting to be honest, I played passive and still did more damage than her, both building damage, me on Galio more tanky and she on Elise full damage. Their team: 2 sets of premades: 3 as top, jungle and mid - a silver 3, a silver 2 and a gold 5, the other two premades duo bot- a bronze 1 and an unranked. They stomped us, our top handled it for quite some time but the team just took their lead there and proceeded to crush our base. We kept defending supers from all 3 lanes for a while, they were toying with us toward the end. We had only 1 turret of theirs, there was no coming back.

Food for thought? Is it fair? Is this supposed to be enjoyable? What's the point of a smurf to dominate in and have fun when your regular games can queue you up with significantly weaker players?

This happens often and I'm certain it is not just me, as evident by a simple example - my teammates (excluding the gold 4) so I'd like to know what to do. Yes, git gud is a possibility but I play on +200ms, I am trying my best.

Have a great day on the Rift, Sir Pooopsalot