It seems to me that you are using children as the only justification for the definition of marriage.Not at all. On the contrary, the "same sex marriage" crowd are trying to use a committed relationship as the only justification for the definition of marriage. They are trying to get a free ride on the other requirements.
If you read my earlier post, children are only one of many elements to a marriage. Children are an important part of the comittment and the contract. A strong, faithful relationship is another requirement. A willingness to raise your children with respect for the laws and customs of the community is yet another requirement. Failing any of these requirements is a serious problem for a marriage. Asking for a marriage when you know that you can't meet all of the requirements is fraud. That's why same sex marriage should never be allowed. It's fraud, plain and simple.
I certainly agree with this part 100 percent. I've said before that international laws are just like gay marriages, they are fake.