I personally would not be okay with this.
For the first few seasons of the game (started season 2, started ranking in 3) up until end of season 5 I was in high school. This meant I had a lot of time to play league and as a result I could play with my friends (normals, with 3-4 other people) and still have enough time to play ranked solo/duo when no one else was on.
As I have started going to university and working a part time job on the side I still play a lot of league but if dynamic que were not implemented then I probably would have to choose most games whether I wanted to play ranked and try to get to diamond or play with my friends. Playing with friends is simply more enjoyable than subjecting myself to 4 other strangers regarless of whether they are toxic or not. With the addition of Dynamic it means we can all take the game seriously and rank up at the same time (all around the same skill level, low to high plat) while focusing on improving. I have also met many of my friends just this season by adding them after a good game and then inviting them to play and slowly becoming friends with them making it more likely to have more people on for dynamic que.
Simply put, Dynamic que saves time and as one of the many millions of people who does not have that much to spare I welcome being able to play with friends and rank.
On the topic of ranking up in general and dynamic que ruining ranks integrity, I don't fully buy that. Ranked has NEVER been a good estimate of your skill at the game. For most of Leagues lifespan ranked has been a good estimate of how well you can carry a game. Sure individual skill should matter but it is a team game and the ability to cooperate and coordinate with team mates has arguably always been more important (expect back in season 2 where you could become so strong you could 1v5 solo carry).
The differnce between me being plat 1 and most of my friends being plat 3 and lower is simply due to the fact that when we do sometimes play solo, I have learned how to carry and lead the team to victory by basically giving my team mates a step by step guide to taking objectives and helping them win.
The problem of premades for solo is meh. I can't speak badly about it as in all of the ranked solo games this year I have yet to have a premade of 3-4 who were toxic or lost us the game because they were a premade. Usually they did their stuff and I helped or I told them what to do and they followed. I can see it being a problem though if the premade is inherently toxic and bashing the solo player but then there is the mute function.
Boosting is unfortunately easier than it was before but again people seem to forget how much time this game takes. Even if you have a team of 4 other fakers with you it is going to be hard to carry people past gold and even then they certainly aren't getting past plat. Still It is a problem with bronze and silvers ending up in gold but taking away dynamic que due to it is not the only solution. If you got a cut on your hand and it gets infected you don't resort to cutting off your hand just to get rid of the infection, you take some antibiotics and clean the wound until it heals.
TL;DR
Dynamic que saves me and many others time and ranked has never been about solo skill anyways/killing dynamic que is not a viable solution to the problems we are currently facing.