Delta is making record profits so UA would be crazy to ignore their model.
Actually UA is ignoring the biggest portion of the Delta Model: improving in flight services. Have you guys seen the meals on DL lately? Meanwhile my meals in BF on UA the past 3 flights have made me gag.
The revenue based MP program is here to stay. Anyone who hates it, come join me at the new american

Airlines could care less about a "boycott" they know you need them.