Why would he need to be pardoned to inspire copycats? Why wouldn’t his death cause him to become a martyr and inspire others?

Why would he be pardoned by the governor at all? Why do you believe Hunter Biden being pardoned is on the same level as J6 being pardoned, when the reasoning (accurately) was to protect him from a perversion of the law in turn?

Your entire argument is essentially “kill them before they can prove they’re not still a threat”.