"Like" and "hate" are not the operative terms. Rather, it is "pay for". Nothing is free, it is simply included in the ticket price. Or not.
Entertainment - IFE is expensive, weights a lot, and costs a fortune to maintain. BYOD is an incrementally small cost above the already-installed WiFi infrastructrue and consists of a plug & play hard drive.
Food - Consumers made this one clear long ago. Bring your own.
UC - Not worth it unless you are a FF with long hub connections and understand that it is a cup of coffee and some munchies. Again, could it be better? Of course, but how much more will people pay for that?
All things are possible. Lie flat in Polaris, Polaris access on the ground, and food appropriate to the journey are all doable. But, at a cost. How much are you willing to pay for that? Or more precisely, given that UA's major customers are employers, not passengers, how much are employers ready to spend?