Based on the diets you listed, you missed my point completely. If you are not getting any gains, you are not eating enough and/or not lifting heavy enough. Track your food. I thought I ate a lot and when I tracked it was clear I was not. I had to set alarms through the day to tell me to snack on the jars on PB I kept at my desk. I was almost never hungry, ate 2 dinners, etc... And it worked. I'm 6'1" (not very tall) and went from a skinny fat 165 to a lean 205.

Lifting heavy is the other part. Everyones biomechanics are different, so you need to adjust to fit your own, but being tall is not something unique. There are plenty of tall athletes who put on lots of lean muscle.