moi aussi,
I think you post indicates what the nekudas hamachlokes is here. You are giving the word “choice” a very broad meaning. When I use the word “choice” I mean a conscious choice. Tayvas are certainly not conscious choices.
However, you are using the word choice to include “anything that can be prevented, no matter how difficult.” Even though a person does not, in the vast majority of cases, choose to have a tayva, a person is capable of working on themsevles so that they stop having certain tayvas in the future. It might be extremely difficult to change one’s character in such a fashion, but it is possible.
Thus under your definition past tayvas are not a choice but future tayvas are a choice.
Under my definition (and I believe that of jewishfeminist) no tayvas are a choice.