I don't think I eat "so much" meat. I eating eat 1/2 lb of meat many days and closer to a pound some days. I eat generous amounts of fruit and raw/cooked vegetables although probably less tubers than some describe.
It's about finding what you need at a given time. If I feel more hunger for meat than usual, I probably didn't eat enough meat yesterday. If I'm not hungry for meat I don't eat any. I pretty much do the same with vegetables--some days I eat tons and the next I might eat only a few. For whatever reason, I'm always hungry for fruit although some days I want more than others.
From month to month or season to season my food mix can vary widely. My staple meat is definitely beef with only a little poultry and fish because I clearly thrive on beef more than the others.
I consider my approach a moderate one and I know many other PH regulars who are comfortable with their personal routines--which may be very like mine or very different.