Not harder, smarter. How? Well by starting to be very honest about what we are up against instead of running after some fantasy projection of our imagination.
The fight is against our very nature.
Anthropologist Joseph Henrich states in his book The Secret Of Our Success. that humans evolved to transmit culture with high fidelity. One of the biggest threats to transmitting culture with high fidelity was Reason. [...] Historically Reason has been the villain of the human narrative [..] so evolution removed those genes from the population and successful cultures stigmatized them enough to give people an internalized fear of even trying.”
https://slatestarcodex.com/2019/06/04/book-review-the-secret-of-our-success/
That fits in tightly with what Prof. T. W. Murphy points out that only 10% of humanity consists of logical abstract thinkers (Myers-Briggs NT profiles). The rest, the vast majority (the ST-SF gene pool) are primarily sentients (thus extremely short-term-minded -seeing & feeling-is-beliving) beings.
In short human society is little more than, and reacts exactly like, any tribal primate species.
Looking at that angle teaches us the following: "In chimpanzee society, the 'dominant' does not always have to be the largest or strongest, but rather the most manipulative and political which can influence the goings on within a group. Chimpanzees typically attain dominance by cultivating allies who will provide support for that individual in case of future ambitions for power. By means, these allies too hope to increase their own social status.[..]. It is often the females who choose the alpha male. For a male chimpanzee to win alpha status, he must gain acceptance from the females in the community. Females have to make sure their group is going to places that supply them with enough food." All show tribal submissive behaviour towards the dominant.
So it all boils down to triable sentient power mechanisms + the promise of plentifulness. Talking doesn't help, never has. Neither has being right or rational.
The peace movement must start thinking like apes: aim for hardcore power & promise plentifulness.