To quote you - "The big stuff largely hasn't been touched, and the reason for that is because the House has elections every two years and a lot of new Republican voters are on medicaid."Huh? I didn't say that.
Hence, if I take you at your word, entitlement spending isn't being looked at or cut (at least not yet) because of the Republican House that was (re)elected by a bunch of new geriatric voters intent only on getting their share of the Medicaid pig trough.
Also to note, based on post-election results, it was by and large younger men that moved into the Republican camp for the first time that really made the difference. Are these new Republican voters on Medicaid?