> We should be arguing that cars should not have any speakers if that’s the case.

Even speaking with passengers has been shown to increase traffic incidents:

* https://www.sciencedirect.com/science/article/abs/pii/S13698...

* https://journals.sagepub.com/doi/10.3141/1899-15

* https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/...

It's a debate spectrum / sliding scale on how society wants to go, but at the very least one should be aware of the risk factors and be mindful of where your attention is.