The phrase "same arrogance" means having a similar kind of pride or superiority complex as someone else. It suggests that both individuals possess an attitude of considering themselves better or above others. Full definition
The same arrogance and hubris we see in those who are fanatically devoted to their religion is found in those of us who claim to be fanatically devoted to the notion of «reason». (religion.blogs.cnn.com)
It's the same arrogance (I know what god wants and I don't care how many disagree with me or for what purpose) that flies planes into buildings.. (religion.blogs.cnn.com)