Another way is to sell the stocks, in my opinion. That is the tool by which the invested public can express, that they no longer trust in the future of a private company.

Another tool is to go into politics and change the law, that forbids surveillance technology to be sold to governments. Which then influences the future of Amazon.

And a third way, do not work for companies, that you do not see a future in. Either by your own moral standards or ideas or simply because of long term outcome.

But maybe that is old fashioned, non collective me. :-)