What and where is it you have read about bunion surgery that has you upset? I suppose you could make this statement about any medical treatment or surgery. There will always be people who are unhappy with anything. I can not give you statistics about the number of procedure done and outcomes. I can tell you that bunion surgery is performed competently and frquently by many podiatrists.
Think about this- if it was harming so many people, why would we do it? Besides, from a practice standpoint, that would be bad for business.
You need to talk to your doctor and get your concerns addressed.