If we worry about that, then maybe we should get rid of campaign posters, buttons, bumper stickers, etc. & not let anyone know where we stand on the issues.
I don’t think we should cower in the face of violent threats.
I’m pretty sure the secret ballot is not considered “cowering”. It’s more like the foundation of any democratic form of government or organization. Without it, it is just too easy to single people out for retribution for voting the “wrong way”.
People are attacked and their property damaged or destroyed for displaying campaign posters, buttons, and bumper stickers, you know. I’d rather not see that extend to the voting public at large.