I don't have any problems with your response.

I answered because you posed it as a question on a debate forum, and therefore it was a request for information in a forum where anything you post is potentially up for debate.
The difference between believing in something strongly but not needing to export those ideas to others, and believing in something strongly and needing to export those ideas to others is dependent upon one's opinion on the relativity of truth. We can generally agree that there is an absolute truth out there, but whether you believe in absolutism or relativity in truth for you believe that you can know that absolute truth or not. By definition, most Christians are truth absolutists, you have faith that you are absolutely right about your belief in God, because if you did not, then you have little or not faith and therefore are not acting to the standards of your religion.
Humanists on the other hand have the freedom of choosing an absolutist or relativist stance on the nature of known truth. I choose a relativistic stance which means that while I believe things with a powerful conviction, I understand that there is a potential for me to be wrong. If I see this potential, then I understand that you, as a Christian could potentially be right. Given this, I have no right to try to force you to believe differently. Viewing others through this lens, I understand the need for a diversity of ideas, because homogeny isn't necesserily right.
So, in conclusion, I believe in a truth that is different from the truth that you believe. I believe that you are wrong to believe in God, but it is your right to believe in God because I cannot claim to absolutely know what is true, I can only claim what is true for me. Further, it is your right to believe whatever you wish to believe, I have no right to try to make you believe something different, this is a human right, and something I will respect.