Do you support the Constitution? Do you support the First Amendment? Do you support freedom of speech? Do you support freedom for everybody, not just for yourself, and not just for people you agree with?
If you support Free Speech, let the mosque be. You don’t have to like it. You don’t have to approve of it. In fact, it’s not your job to approve the mosque or not. It’s your job and my job as American citizens to support one another’s freedom.
Just let the mosque be. Is that too much to ask?
If your answer is “yes,” then I’d like to gently suggest that you have a fundamental problem with the idea of America.