Nothing is neutral. Every activity one undertakes is at the cost of doing something else, hence "neutral" is actually negative - and would get selected against, ex hypothesi. Even things that benefit survival but don't do it strongly enough would be functionally negative, and therefore selected against.
Finally, take activities that are strongly beneficial. Not doing these things will put one at a selective disadvantage against one's rivals.
If you agree with the above, there is no validity at all left in your original claim:
>Things which are neutral or even benefit survival are not selected for.
If I understand correctly, your basic argument is something along the lines of, "Eating is obviously extremely beneficial. Therefore eating must be selected for. Therefore your statement is false."
My rebuttal would be that you are looking at the wrong side of the equation. Eating is not selected for; not eating is selected against. So no, your argument does not counter my original claim. Such reworkings of the argument may seem petty, but they are centered around a deeper understanding of what exactly selection is and how it works.
Finally, take activities that are strongly beneficial. Not doing these things will put one at a selective disadvantage against one's rivals.
If you agree with the above, there is no validity at all left in your original claim:
>Things which are neutral or even benefit survival are not selected for.