Ivermectin is off patent and extremely cheap, there is zero problem producing enough. And if i want to waste a few cents on a few tablets, thats my prerogative.
The risk is also far below aspirin. As to what you consider an acceptable placebo, why should anyone care? As long as we are all consenting adults, i would say mind your own business, would you?
Knowing that the more you try bossing people around, the more likely they are going to push back. Leaving us all in a non to friendly environment. So ask yourself, are you really willing to start societal conflict over denying people a non-harmful, not scares placebo?