Second, roads predate cars by thousands of years, so, no, they weren’t “made for cars.” Some actual roads existing today predate the cars on them by hundreds of years.
Third, the supply chain argument is very lazy and easily refuted. Most of the problematic car usage in my neighborhood has nothing to do with the supply chain. We can get your products delivered without building cities primarily for individual automobile traffic.
The most important detail in this discussion is that cars existed when you were born and you were raised in a society where they were normalized. Therefore, you regard them as a natural, unchangeable feature of the universe. Scooters are new, so you expect a lively debate about their use. This is the detail that informs everything about our disagreement.
