This is going to unfold VERY slowly. When you do finally let them out, don't move towards them. It's fine to sit on the floor and read out loud to them, or simply talk with them. If they get hissy or swatty, SLOWLY move out of range. Nothing fast, nothing loud.
Since you are removing things to give them more space, google "climbing shelves for cat." You'll find a ton of ways to enrich their environment, especially since Miss Babycakes (maybe I should call her "Mrs." since she has a family) seems to like a high perch.
Since you are removing things to give them more space, google "climbing shelves for cat." You'll find a ton of ways to enrich their environment, especially since Miss Babycakes (maybe I should call her "Mrs." since she has a family) seems to like a high perch.