Actually, I would like to see more countries ban international adoptions. There are two types of adoptions. For the most part there are the orphan adoptions. These cases are very regulated and are usually real orphans going to deserving families. The process is long and costly and should be so. For the most part these are real families and genuine adoptions. Countries should do a much better job of regulating this area. Children do not come with warranties or a fresh leather smell.
The other type of adoption is almost always done by relatives to skirt immigration law. This should be discouraged unless the family can establish some compelling reason. This reason should have nothing to do with country conditions with the rare exception of persecuted religious or ethnic minorities. The excuse that conditions in country x by itself is not sufficient explanation.