Earlier quoted context omitted.
Speeding is one of the most obvious examples of government overreach. 1) The speed limit obviously an arbitrary choice - the chance of death is decent at 50k/h (standard "town" speed limit in Slovenia) (so why not 40hm/k or 30km/h), and e.g. Germany has no speed limit on the highways (in some places) so there's really no good reason to set a limit of 130km/h (why not 110km/h or 150km/h)? 2) The easiest objection to (…
Speed limits are important for non-cars. As a cyclist, I don't want people overtaking me 100km/h with a 1m gap. As a pedestrian trying to cross a small city or town street without dedicated crossing, I don't want drivers to suddenly appear with 100km/h from a small curve. I'd argue that 50km/h in a city is still too much. 30km/h should be the limit.
See? It's all discretionary. As should speed limits be (at the discretion of the driver, based on the current road conditions).
The problems you mention have other, better, actual solutions (e.g. cycling lanes, speed bumps before road crossings, ...).