I was thinking from an investment perspective. Investment across both can be synergistic, so in the end both systems work better.
Unfortunately, from a political perspective, drivers will still to maximize their share of road space, and tend to oppose shifting car lanes to bike lanes. When confronted with the issues that cars cause (pollution, accidents, etc), technology like EVs and self driving gets deployed as a way to suggest that the status quo is fine (despite the fact that plenty of drivers seem to be upset about the EV transition, but I digress).
For more arguments than can fit in this margin, see: https://www.youtube.com/watch?v=d8RRE2rDw4k "The Best Country in the World for Drivers"
(edit: +if you don't have time for an entire video, just watch this one traffic light for single example that exemplifies the story: https://youtu.be/SDXB0CY2tSQ?t=437 ... comments on that video are good too!)