I live in a low density city and my neighbors are constantly complaining about how fast cars speed by and how it makes it unsafe for their kids.
Dense cities are too congested for speeds to get that high. As an example, I felt safer biking in downtown San Francisco than I do on the country roads near me because people are constantly speeding and on their phones.
Suburbanites baselessly complaining about traffic is like old men complaining about kids these days. I don't take it too seriously
Part of this is the politicization of some of these issues. I previously lived on the outskirts of the suburbs and when I would bike out into the country I would receive a lot of hostility from dudes in big trucks that called me names as they drove by. Anecdotally, this seemed to happen way more frequently in the last two or three years.