The issue with this stance is that it's one of those all-or-nothing points of view. Sure it's better to have good public transportation, but in a lot of places there won't be for the foreseeable future. Sure it's better to use bicycles, but sometimes it's just not an option.
Electric cars won't fix traffic, but for the planet they're still a vast improvement. It's like a viable 95% solution that is dismissed because there might a 100% one somewhere in the next 200 years.