If you are OK with torture and think that should be our policy then you should petition your senators to pull out of the treaty. Until then engaging in torture makes us demostrably dishonest.
Lots of egrerious laws are passed all the time. Doesn't mean they are moral, particularly when they are passed by socialists.
Refusing to pursue all means necessary to protect the innocent is immoral.
Are you advocating that the American officials who ordered and carried out water boarding should be tried by the International Court of Justice and be imprisoned for their crimes? Isn't that part of the treaty?