That's not too bad, in terms of plants. In terms of habitats for animals, that's bad.
You've got to factor in all the plants in residential areas. For animals, we need to preserve their natural habitats.
The whole east half of North America would have been completely dark just 500 years ago. The natives at the time routinely burned everything North and South of the channel they wanted to drive MASSIVE amounts of plains bison through.
You've got to factor in all the plants in residential areas. For animals, we need to preserve their natural habitats.