You did. In your words:
Why do you assume that the policies I vote for are based on what is best for me personally and not based on what I feel is best for the country?
You left out the last line. Those policies might be best for the country or might not be.
Because you or anyone votes based on policies doesn't automatically mean they are best for the country. They could but the opposite is also true.
This all in context of you quoting my question of: Do you ever get to the point of what is best for our country?
You implied that in November we vote what is best for our country.