Still an absurd argument. We get a lot of nutritional value from plants and you still take shits after eating meat.

According to the people who are on all meat diets, one’s volume and frequency of poop goes way way down.

We generally don't eat the toughest parts of plants either. Seeds and fruits are not as hard to digest as many stems or plants like grass. Not to mention that we pre-process a lot of the vegetable matter we eat - either by grinding (e.g. flour) or cooking or both.

Yes plant based food is often ultra processed and highly refined, which is typically what foodies argue is bad (except when it comes to their plant food).

Thankfully humanity invented cooking for this very reason. Progress is great, isn't?