User blog comment:Observer Supreme/What if Luffy had the Soru Soru no Mi and Linlin was Fleet Admiral?/@comment-1784001-20170603165932

If Luffy had the Soru Soru no Mi instead, then he would have to use an entirely different fighting style. But it would be cool if he could use Zeus and Prometheus. However, he would not be able to bounce bullets and cannon balls off of him.

As for Linlin, if she was enlisted into the Marines then the Marines will have to deal with her craving problems. Imagine her rampaging on a Marine base. She would be doing more harm than good. So if the government doesn't know how to control her effectively, they would lock her up like a caged animal.