The government aim to migrate everyone on DLA or Incapacity Benefit over to the new and terribly unfair ESA. It will take a few years, maybe several, but that is the aim.
I myself am expecting to win my appeal for IB but to be migrated, re-assessed and failed again. It's making me ill too and suicide is an option I think of a few times most days.
Sorry to be so pessimistic, I hope they come to their senses but I wouldn't hold my breath.
I agree with your political views.
dj