I've decided to be less of a dick, so I will just re-explain in a way that makes it easier to understand, because I added to what zhawks said (and, in fact. I didn't even read what he wrote before I posted).
Everyone knows you're not playing good teams, that's what zhawks said.
If you read what I wrote, you would have seen what I added.
You're attributing all of your downward trending RPI/SoS to playing your conference.
"Case in point. I had a 113 SoS, now it's 209."
It seems somewhat clear you think that drop has to do solely with playing your conference mates.
During the non-con, your opponents had a record of 42-58.
During conference, your non-con opponents have a record of 31-63.
So while your conference mates certainly don't help, your SoS is dropping even more drastically because your non-con opponents have been awful in conference.
Not sure why you think that doesn't add to the analysis of why your SoS drops. It certainly marginalizes your original position that your conference, by itself, is keeping you from a decent SoS.