The poster said he was proud. I asked where pride came from.
Now, what is the relevance of what you said?
You asked a simple question, to paraphrase, "What do you have to be proud of?" The question certainly implies that he should be anything but proud. My question, "What is there to be ashamed of?" is a perfectly rational response that you didn't answer, instead choosing to question its relevance.
The premise of your original question, borne out in your statement concerning his not helping to secure the future of our country by procreating, is the reason, I assume, that you didn't answer the question. Certainly you can see that yours is a typical progressive idea, that every individual should live for society before oneself.