What is the ruling of the Sharia regarding prohibiting black and colored people from praying in the first row in mosques, and what is the ruling on boycotting mosques because of that?

Islam is free of any discrimination between Muslims based on color or race. Such behaviors, if they occur, are rare. The diversity of colors is a sign from the signs of Allah. The superiority among people is only by piety, as Allah Almighty says: "Indeed, the most noble of you in the sight of Allah is the most righteous of you." The Prophetic Hadiths confirm this, including: "Indeed, Allah does not look at your forms or your wealth, but He looks at your hearts and your deeds," and "There is no superiority for an Arab over a non-Arab, nor for a red-skinned over a black-skinned, except by piety." The mosque is the house of Allah, and Muslims therein are equal. Whoever precedes to a place in it has more right to it. Those who exhibit such behaviors should fear Allah, and those affected should take pride in their Islam and maintain congregational prayer.