Are Salafism the correct islam? They are strict in their islam, but does that make them more true than others?
Salafism is an oversimplification of Islam that thinks the best way to be Muslim is to re-enact history. Mainstream Islam is superior because it is more focused on moral philosophy (following the Quranic ideals of truth and justice) rather than on secondary technicalities like dress code, etc.
For a version of Islam that is far superior to Salafism, please see my essay Quran-Focused Islam.
For a discussion of how Salafism oversimplifies Islam, please see my new essay How Islam Can Adapt to the Modern World: The Persian versus the Arabian Approach to Handling Complexity.