Hit is always returning null for some reason.

Why does my hit always return null? Is it because I'm not using Hit Out? Hit out didn't appear to even work in this context.

         Vector2 mousePosition = new Vector2(Camera.main.ScreenToWorldPoint(Input.mousePosition).x, Camera.main.ScreenToWorldPoint(Input.mousePosition).y);
         Vector2 firePointPosition = new Vector2(FirePoint.position.x, FirePoint.position.y);
         RaycastHit2D hit = Physics2D.Raycast(firePointPosition, (mousePosition - firePointPosition) * 100);
         Debug.DrawLine(firePointPosition, (mousePosition - firePointPosition) * 100);
         if (hit.collider != null)
         {
                 Debug.Log("Hit wasn't null");
         }
         if(hit.collider == null)
         {
             Debug.Log("We messed up");
         }