As others have said, that's not what a Schwarzschild radius means. You would only get a black hole if all the matter is inside the radius. The Schwarzschild ra

As others have said, that's not what a Schwarzschild radius means. You would only get a black hole if all the matter is inside the radius. The Schwarzschild radius comes from the free space solution to Einstein's equation. It only holds in free space. So if you want to use it here, all the matter would need to be within Schwarzschild radius, and then you could calculate what happens outside that radius (again, in the matter free space outside). If you want to know how gravity behaves inside a star you have to use a different tool.