Well the problem is, stuff gets into the water and goes to lakes and oceans. I have used it in the past, but I won't buy the stuff or use it.
I know, invasive species are very difficult to eradicate. They have goat rental services now! Even some highway departments do that. I have driven from Nova Scotia to Florida and seen how bad it is. Like snakes in the Everglades from South America, brought in as pets and dumped when the owners got sick of them. Now people are paid to capture snakes, and even get a bonus for really big ones. Florida's native animals are being decimated by these snakes.
I am not picking on you Cindy, millions of people use it. I just choose not to.