I'm one of those so called 'ninjas' who wear all black. I've done roughly 30,000 miles over the last three years, a lot of them commute miles in the dark.
I have been driven in to once. Just once, and that was in a streetlit area, on a roundabout where the driver who should have given way admitted to just not looking right, he was too busy assessing speed of car coming from left and working out whether he could make the gap or not. So no level of hi viz or reflectives would have prevented that.
It may just be that I'm ludicrously fortunate, or it may just be that having good lights, small reflective patches on my clothing and a non-aggressive riding style is enough.
Riders with no lights at night are obviously going to be not as easy to spot in some conditions. But the idea that hi viz/bright coloured clothing has some sort of magical effect on drivers is bullsh1t. And maybe even dangerous bullsh1t if it lulls people into a false sense of security that there's more chance they'll be spotted.
Sadly, I reckon people driving into cyclists is more likely to be the result of drivers not looking than not seeing (or a mental block where they genuinely don't 'see' because they're not looking for a bike) because the bike/rider are too dark. Or seeing and risking it, or just generally not giving a sh1t!
And where any of that's the case, no amount of hi viz or bright this or that would make a difference.