Some people are in favor of the idea of doing X. They point out the fact that 支持X 的第一个原因. They also argue that 支持X 的另一个原因.
However, other people stand on a different ground. They consider it harmful to do X. They firmly point out that 反对X 的第一个理由. An example can give the details of this argument:一个例子。
There is some truth in both arguments. But I think the advantages of X overweigh the disadvantages. In addition to the above-mentioned negative effects it might bring about, X also may X 的有一个坏处.