Q. I can't be proud of anything that I wasn't personally responsible for.
A. So speaks individualism. 'Responsibility' is a huge chain which stretches from your ancestral past, through the knot of the mere present, on towards the future. You are actually 'solely' responsible for nothing. So if you must be proud, then be proud of the achievements of your ancestors.
Q. If you are proud of those good things that you and yours have done, then why can't you be ashamed of the bad things you've done?
A. What did I say of 'good' or 'bad'? - I do not presume to judge them morally. I am proud of all their 'doings' ... I am ashamed of *nothing*.