The Team Balancing Just Lost Me A Match?

I just played a game while on a 7 game win streak, where the entire enemy team had many games on their champs with very high win rates; 70% ish.

I had the highest win rate on my team 54% ish, the jungle and adc both had 25% win rates with less than 5 games played, and our support had never played their champ before. Our top lane had like a 45% winrate.

It wasn't even a match, me and our top laner did okay... i guess? but everyone else got roflstomped; it was ridiculous.

It was the most unbalanced teams I've ever had in my life.

This needs to be fixed.

I almost feel like asking for my LP back, it was that bad.