A negative version of this, I think, is mandatory diversity education and DEI, which had the effect of making racism and fascism cool and countercultural among the youth.
If corporate HR departments and schoolmarms do it, it's not cool.
I had a similar idea about vaccination back during COVID. Have Hillary Clinton be quoted saying it's good that Republicans aren't getting vaccinated so that way they'll die of COVID. Then make Trump be quoted saying they should discourage Democrats from getting vaccinated so they die of COVID. Result: everyone gets vaccinated.
Solution:
Make graffiti classes mandatory in school. Ensure they are taught by gym teachers with no discernible artistic interest or talent. Subsidize a Graffiti text book industry. Create schools of approved graffiti. Launch a "America's Got Graffiti" television show with celebrity randos.
Graffiti will be dead within ten years. :-)