Muslims are allowed to do things like this when talking to non-muslims to fool them. It has happened before. Muslims move into an area where they are the minority. They claim that the jews are their friends and they worship the same god. They wait until they are the majority and turn it all around. Over and over their leaders have given premission for them to lie about these things. There are always loopholes for those trying to destroy the infidel.
Have you actually watched the youtube video of Obama mocking the Old Testament? He’s not ridiculing the part that Islam contests, but rather the part it holds dear. Nor is there the slightest indication he is ‘lying’. He is simply holding the laws of Moses up to contempt. If you are comfortable thinking a Muslim would do this, so be it. I have read enough and listened enough to know it would never happen.