People are using (Islam) to carry out some of the frustrations that they have. But this is not just about the defamation of Muhammad. Each Muslim is feeling like it's saying 'You're a terrorist. ...' So you're defaming my character as well.
I think there are two lines of thought on this. Don't show up for work and show the impact that has, or you should protest in a more constructive way, by showing your work ethic, that you're responsible and a contributor.