It's not a binary choice. I can use Uber and still pressure them to be a less shitty corporation.
Contact your government representatives and ask them to regulate Uber and their business practices.
Share news reports with your friends so they understand the problem as well.
I don't use Uber or Walmart because I feel these companies are destructive (on balance) to society. That doesn't prevent me from complaining when Lyft or Target fails to be a good corporate citizen.