When i was playing a match, at the end i found out my entire team is iron 2, 3 and the other team more than half is bronze 2 and 3 wtf is going on

Hello. Long story short: [https://imgur.com/a/XEl1Kj1] * Played with 4 other friends (EUW). * Matched up against another 5-men team. * Enemy team's players all have high ping (100+). * They peek and easily get frags most of the time. * We...