This is exactly why we need to have open and censorship resistant platforms.
We should never celebrate deplatforming people for unpopular or evil opinions, not because we agree with those opinions, but because those tools can and will be used against good causes / us eventually.
The cancelling culture, and rage framework that has existed in the west media is now being turned against "worthy" causes.
I've gotten into many deplatforming is evil, and shouldn't be encouraged/allowed arguments on lemmy - this is exactly why I engage. Do I care about kiwifarms, communists, racists, no.... I do not, but when its time for my voice to be heard above the whargarble of public opinion i need those very same platforms to exist.
The next step would be to legistate that protected free speech should also protect people from employment discrimination and reprisals, but that is probably a discussion for another day.
Today I think the big fight is over saying : Killing civilians is bad, ethnic cleansing is bad, genocide is bad....