What is the ruling on the saying and thinking that "Islam is a personal, individual matter" and that neutralizing religion from life is a sign of national progress, and is one who says and thinks this considered a disbeliever?

Islam is not merely a personal relationship between the servant and his Lord; rather, it is a comprehensive religion that regulates all aspects of individual and societal life, including personal status, financial transactions, familial and social relations, and even personal hygiene. Whoever claims that Islam is solely a personal matter has erred regarding the truth, for Islamic Sharia came to safeguard people's rights, wealth, and honor, and it calls for justice and fairness in all dealings. It is valid for every time and place, provides solutions to human problems, and strikes a balance between extremism and apathy.