What the Hell Rito, explain your matchmaking

All right, sooo after the 4th loss in a row playing ranked. I was playing ziggs mid, Consistently having 2.0 or better kda an taking tower before anyone else, winning my lane no questions. The last match I played bot lane adc an sup each had 19 deaths.... 55 kills on the entire enemy team by end of game and 40 of them were the bot lane.... thats atrocious. So Im currently Bronze 1 ( bad placements I did with family member) Anyway, I looked up the opposing team and they had two people gold, the rest silver . Now Im fine with versing other people who play at a silver level I can keep up an match that. But what the hell is a Gold 4 and a Gold 2 doing on the opposing team of my Bronze 1 ranked game..!?!?! how the hell are you supposed to climb with feeding Bronze 5 team mates, and Low to mid Gold enemies?