I understand that people feel strongly about breast feeding- and more power to them- but it really doesn't help anyone when you call it "poison" or put down people who choose to use it. I have incredible anxiety over whether I will breastfeed vs. formula feed, and instead of feeling comfortable asking about it, I feel like I'll get jumped on- so I don't say anything. And if that's the reaction you're getting from people, then you're not doing a very good job promoting it. I personally find it to be a bit of a turn off.
Though I do recognize that there are some BF mother's who do promote it in the right way, so I'm certainly not generalizing the BF peeps