Isn’t tinting your windshield both illegal and extremely unsafe? I think you took it too far with the film.
Matter of opinion but no, I do not believe it to be unsafe at 50%. It looks a lot darker than it is due to the back windows being so dark.
In fact, it greatly improves driving clarity for us, both during the day (especially early morning and late evening when heading directly toward the sun) and at night (reduces glare, reflections and assists when meeting large trucks with incorrectly aimed headlights).
And of course the HUGE heat reduction is a major factor as well although I admit, they sell a ~75% option if heat and UV are the only things you are looking to reduce.
As for being illegal, yes, technically it is, but have had windshields tinted for the last 15 years and while I have received the occasional ticket for the side windows, never a word about the windshield, even having one police officer comment about it being fine (he could not tell it was tinted standing over it).
Another major factor for us is that the wife suffers from chronic migraines and a top trigger is excessive light.
And finally, no less than 15 people have ended up getting their windshield tinted the same after having driven /ridden in one of my vehicles after experiencing all the positives and they outweighing any slight reduction of visibility in extreme darkness. Even my 65+ year old parents have theirs done...
But to each their own.