[2019] Unranked players should not be put in Golds games

I am support/adc main (gold 2) and I just had an unranked ashe adc. She obviously went something like 0/9 in few minutes and she lost almost 80 cs to enemy adc. It is not even her fault. Most Golds have been playing this game for at least couple years (not all golds) and (most of them) have some basic understanding of the game, while most unranked players don't have the basic macro and mechanical skills that gold players have, even though Gold is considered low elo.. One game I am matched with platinum players and the other games I am getting unranked that simply get crushed and lose the game.

It is bad not only for the players that play with the unranked player but for unranked players too. Often they get flamed and it may make them lose interest in playing ranked games in the future.

Ironically, I am unable to go due with my unranked friend (that was silver 3 last season) but I do get fresh unranked players in my ranked games quite often. How does it makes sense?