I believe if everyone who was against the current oligarchy started placing guillotine stickers everywhere, like you might for a favorite band, people would feel less isolated in their distaste for the current system.
And in an ideal world those who the guillotines are for might realize just how much they are in the minority.
Ok, but guillotines are inherently infrastructure for mass killings, that is itself only “defense” from a detached and twisted perspective that renders the distinction between defense and attack meaningless. That the scope of its use rapidly expanded in the French Revolution is just naturally how it goes, once you’re at the point of such mass killings as a primary tool “tolerance” is fucked no matter how you slice it and it cannot be the case that those methods are sincerely working in its favor.
This isn’t to say that any form of self defense is going to go that way, but I think the form of violence represented by guillotines always will.