Turn off disasters.
First build a town with surplus cash with enough Healthcare, jobs, industrial areas, police and fire. Now grow your city until you unlock the ability to tax specific segments. Make sure your city is still in good condition before you start the experiment.
Clone the save file so you can run a control.
City A change nothing an let the Sim run for a year.
City B lower taxes for the low income to 0. Your city should have enough surplus income to make you not go into the red starting this experiment.
Post your results for the Tale of Two Cities simulation.
Edit:
Someone posted this:
https://www.polygon.com/videos/2021/4/1/22352583/simcity-hid...
And then deleted it, probably for fear of reputation or downvotes. Chilling discussion doesn't serve to educate or bring us closer together.
I am happy to see the link from Will Wright and it make a point perhaps we shouldn't trust the initial Sim City engine to modeling, but I would much prefer a person who never flew a plane but has spent time in a flight sim trying to emergency land a plane rather than someone who never flew a plane or used a flight sim.