As I am rising in the ranks (now in plat) I am beginning to see the folly of Dynamic Queue

I can't even imagine how bad it is in Diamond and above right now. I really didn't have that many bad experiences in gold and silver, but already into my 4 games in plat I have seen some awful matchmaking. Riot said they wanted to make fair games, but I have not seen that so far in Plat. I played with a premade 4 and that was an incredibly unfun experience (everybody's rank was relatively similar). And now I just played against a team that had a duo bot and a trio jung, mid, and top (our team just had a duo mid and adc). As you probably guessed it, our team was crushed. It was clear the team had better synergy and communication. I am not ragging on them for playing with a premade, I am angry about the fact that I was paired up against a completely premade team. Although they weren't a 5, they were a 2+3. What does Riot do to "balance" out this issue. They say, "Here, take a couple of D5s that are at 0 lp because they have lost a majority of their last 20 games and are probably on tilt. You need to fix this Riot. I hope this hasn't set the stage for what climbing is going to be like from now on, but I kind of think it has. As a solo player, I feel unwelcome to the game.