So in answer to your bullet points:
1) Veena Dubal
2) Uber drivers (I mean, I could be mistaken. Perhaps this professor of law moonlights as an Uber driver. If so, I would continue to argue that this is not her main vocation.)
3) She wants Uber drivers to be classified as employees
4) The majority of Uber drivers
5) Nothing and I never said they hadn't consulted. In this case, quite clearly they have consulted with the groups but have not listened.
Now, in the podcast, Dubal goes on to dispute the polling methodology of the various polls. Well okay, re-poll with your questions and present the data. The point I'm trying to make is that you don't ram through legislation before convincing the people you're going to affect the most that it's good for them. Educate and convince them first.
[1]: http://rationallyspeakingpodcast.org/255-are-uber-and-lyft-d...
[2]: https://www.uchastings.edu/people/veena-dubal/
[3]: https://www.investopedia.com/california-assembly-bill-5-ab5-...
[4]: https://thehill.com/policy/technology/513506-uber-poll-drive...