I got 47 deaths per day from the roughly 17,000 fatalities that are directly attributed to drunk driving each year[1]. Even if we arbitrarily halve that to account for at-fault deaths at drivers' own hands, that leaves ~23 people dying, each day, because of drunks on our roads.
In contrast, around 300 people died in total on public transportation in 2020[2]. In 2019, 34 million people commuted daily by public transportation[3].
By contrast, around 76% of American commuters drive to work[4]. Assuming that "commutes to work" is the same as "employed," that means 76% of 158 million[5], or around 120 million driving commuters.
In other words: 4 times as many people commute by car than by public transport, but at least 20 times as many die each day just via the canonical example of unsafety on public transport. And the actual ratio is likely far higher, since the best number I could find for public transport fatalities (under 1/day) is not filtered by accident, suicide, crime, natural causes, &c. Thus the claim: the things that people claim to fear about public transport are far more real as dangers when commuting by car.
[1]: https://troopers.ny.gov/impaired-driving
[2]: https://www.statista.com/statistics/1295843/number-fatalitie...
[3]: https://www.apta.com/news-publications/public-transportation...
[4]: https://www.statista.com/chart/18208/means-of-transportation...
[5]: https://www.bls.gov/news.release/empsit.t01.htm