Both actually. First of all my influence on selecting which country I was born into was very limited, not to say, zero.
this is exactly what i think also. one should be proud of something if he added something in it.
on the other hand i still get excited when i wacth my national team against others. and get proud if they win.
by the way if it is about football you may get proud of your country thousands times.
in turkey, (if it is not against turkey) most of the people supports germany in e.g. football games. turkish people appreciate germans too much and it is unique. mostly because of WW1 alliance, german discipline, mercedes etc.