I know how frustrating it can be to want the little boogers to accept you. I have one little girl that was terrified. Every time she would hear me voice, see me, or even take a treat from me, she would crab and do the Mr. Miyagi. I had suspicions that she was taken from her mommy too soon and even that her eye sight wasn't developed fully. It took a very long time for her to even accept another glider, and luckily I had one who was patient enough to bond with her. After a while of being with her new friend, she seemed to learn from him. He calmed her down a lot and I always kept them together during bonding. At first she would eat live mealies (she thought they were gross)but once she learned they were good, they were the best weapon in my bribery arsenal. I took them out and held them in their sleeping pouch(this eliminated stress of transferring to bonding pouch, but keep it closed) and held them under my shirt against my skin. Let them sleep this way for a few hours per day and give lots of mealies. It does take time, but if you nail down a routine, it will help tremendously.
I have 6 gliders and still have struggles with my newest adoptees. Hope my personal experience helps some.