If you think that High Carb diets comprise only potatoes, sweet potatoes or rice all day (which some populations actually eat without complaint), then you're mistaken.
Here's a High Carb diet (the food in the picture can sit on top of Basmati rice, if you like).
Here's another High Carb diet.
And yet another.
The above can be eaten with animal produce, which includes some steaks, cheeses & butters.
Anyone who claims that High Carb diets are tasteless and monotonous has zero imagination.