We land visually all the time. Especially in the US it is super common to be cleared for a visual approach, because it increases the runway capacity (can fly cl

We land visually all the time. Especially in the US it is super common to be cleared for a visual approach, because it increases the runway capacity (can fly closer together if you can see the plane ahead and follow them). You would have the ILS (or GPS based approach) as a backup on your screens to verify. If what you see out the window does not match the systems, you stop the approach, climb, take some time to "debug" and then try again.