The photos help a lot. You need a new windshield to make the car look normal.
A previous owner left a mess, probably from trying to remove the black "paint" from the glass. The problem with that approach is that the black "paint" is really black glass which is permanently fused onto the clear glass during windshield fabrication.
Any chance to abrade the black glass off and then polish the abraded area to look clear is gone now because the new scratches are deep into the clear glass. If you abrade the glass deeply to remove the new scratches then after polishing this area you will have a funny-looking wavy lens in this area. And there is the chance the glass will be weakened and crack.
As Rhye suggests an exterior paint may be an answer. The scratches will not be seen from outside. What you will see from the outside will probably not look normal. Test the look by temporarily applying a patch of flat black tape over the scratched area - look at it under various lighting and viewing conditions. You may or may not like what you see.
No advice about painting exterior glass. Ask a glass repair shop for advice, especially about glass primer which is not the same as metal primer. I also set aside the issues of the passenger wiper over the paint, cleaning the paint with glass cleaner and safety inspections in your area.






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