Want to change the system? Post preprints and only post preprints - don't submit to journals, don't subscribe to journals, don't read journals - only hire and fund people based on their preprints.
Nature now charges $12,290 US to publish a single article open access. Shall we list some things that cost less than that? I'll go first: a 2017 BMW 330i sedan, a 7-day cruise for a family of four, six Louis Vuitton purses. 🤪