What is the ruling on one who describes himself as a "liberal Muslim" and claims adherence to the teachings of Islam while rejecting what contradicts liberalism, and denies any connection to atheist or secular liberals, affirming that liberalism is based on pluralism and freedom of expression?

It has been previously explained that it is not permissible to use the term "Islamic Liberalism," because combining Islam and Liberalism is a combination of two opposites. For further benefit, one can refer to the book The Reality of Liberalism and Islam's Stance on It by Dr. Abdurrahman bin Samail Al-Sulami. He also has a concise treatise titled Liberalism: Its Origin and Fields. There are other useful treatises as well, such as The Idol of Liberalism Has Fallen, Science Rejects Liberalism, and Critique of Liberalism.