This isn't ever going to stop until the ignorant stop believing in magical potions to "cure" ailments.
I'd be more inclined to call it 5% of the floor space at most, but maybe there are differences between stores.
Have you ever used Arnica gel on a bruise? Oscillococcinum for a flu? Extremely effective naturally derived products.
There are other types of non-standard remedies, which you might be talking about. But Homeopathic, specifically, is a synonym for water with fancy labeling.
So, quack quack?
[1]http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD001957...
[2]https://scholar.google.com/scholar?q=Oscillococcinum+evidenc...
That's true, it's not science at all, but homeopathy is a particular form of quackery (and many homeopathic products are frauds on top of the quackery of homeopathy.)
"According to the USDA Forest Service, four million trees are planted every day in the United States. Of this amount, the wood and paper products industry plants on average 1.7 million trees daily,1 excluding millions of additional seedlings regenerated naturally. In Canada, natural regeneration is supplemented by the planting of 600 million seedlings per year."
"According to The State of America’s Forests, a report released by the Society of American Foresters, replanting and reforestation efforts have helped keep forestland stable. There are nearly 750 million acres of forests in the U.S. — about the same as 100 years ago. Annual net growth of U.S. forests is 36 percent higher than the volume of annual tree removals. Total forest cover in the U.S. and Canada basically remained the same from 1990 to 2005.3 Furthermore, less than one half of one percent of Canada’s forestland is harvested annually.4 Sustainable forests are also carefully managed to help prevent catastrophic damage from fires, disease and insects."