Not everyone even knows how to use custom ROMs, tech workers may have a huge presence online but we’re a tiny minority irl.
Anyway, good, go build it. Saying one small mistake makes a company terrible privacy isn’t doing a whole lot for your credibility though, so I recommend you spend more time building than talking about it.
I stand corrected on screens not being bad for eye health, although I would still argue “ruining our eyes” is a bit of an exaggeration.