It might be empty and sad _for you_, but that doesn't mean it is for everyone. Each person has their own things they enjoy. You sound exactly like the people telling everyone "spend your money on experiences, not things" because that's what makes _them_ happy.

There are a lot of people very happy with the choice they made to have children. There are a lot of people very unhappy with the choice they made to have children. The same things are true of people who choose not to have children.

Just because something is right for you doesn't mean it's right for everyone. And treating them condescendingly because you believe is does makes you the bad one in the conversation.