Riot, Can you make the honor level system be in line with your mmr in ranked games only?
Riot isn't going to consider tying Honor into the matchmaking system - that would basically amount to Prisoner's Island, especially in the manner you described.
And, as it were, Riot has openly stated why they don't intend to do a Prisoner's Island type schtick. The long and short of it being, it doesn't help reform, and it just makes the game worse overall.
I do not think players would mind longer queue times if it means a higher chance of better players who do not feed 5 kills before laning pahse is over.
As others have pointed out, underperforming has nothing to do with Honor. It has to do with skill, and if you don't want teammates who underperform, then you need to perform better so that you can get better teammates.
It would also make climbing easier for people who do not want to play carries such as tanks and supports and some bruisers. In short, this game is too carry heavy. Too much damage makes the game heavily reliant on assassins and mages and adcs. It is very hard to actually climb in ranked if your carries suck and you are playing a tank or support. This season proved to me that Riot will not change their meta any time soon.
This whole section is just a massive non-sequitur. You went from talking about Honor and player behavior to talking about the meta. If you want to talk about the meta, you can go over to Gameplay (although, the bar for discussion there is fairly high), otherwise, you can go to General Discussion, or RANT, if you just want to vent about the state of the game.