Please remove matchmaking adjustment

I play mostly team builder because I enjoy being able to choose my preferred role and focus on that rather than being forced to do something I don't enjoy, but I've noticed that the matchmaking adjustment system in place changes matchmaking for the worse in most cases. If I feel like I want to try something new (or in most cases, something I haven't done for a while to spice things up) I get matched with the special-needs class version of league.

I understand that the point of matchmaking adjustment is to make the player have less of a hard time while trying out something new, but what if I've actually played that champion before outside of team builder? is it really necessary to match me with incredibly toxic bronze players? Because I'd rather not have that at all, and that's what's happened every time I decided to pick something up, and then I have to suffer through like 10+ matches until my MMR seemingly returns to normal. As if the community wasn't toxic enough, adjustment just seems to be there to make sure I struggle through these games, I think it made things much harder and less enjoyable to me rather than making it work out better.

What does everyone else think? Have you had any experience with this matchmaking adjustment? I personally think it's the most unnecessary thing ever.