Can someone please explain to me what all the hatred of genetically modified food in general is about? Secondly, explain all the hatred for Monsanto as well.

I am relatively ignorant of the topic but there has been a lot of noise about it lately.

Here's the extent of my knowledge:

(1) Companies, like monsanto, breed plants like corn to do things like need less water, be resistent to herbicides, etc...
(2) to do so, they breed plants like people breed dogs ie. find two dogs that are really good at swimming/retrieving and, after a long period of careful breeding, you eventually get a Labrador retriever.
(3) I prefer seedless grapes to grapes with seeds. The same goes for oranges and watermelons.