No, you missed my point entirely.
There are empirical studies showing that texting and driving have a quantifiable impact on safety, as in people who text and drive are many times more likely to have an accident than people who do not text and drive.
The measured percentage increase in risk is equal to or greater than the increase in risk with BAC over .08.
Your idea does not have any such studies to back it, and there are no actual numbers to prove any impact.
This is not a hard concept. You need hard evidence, and you do not have it.