Still, the untaxed 100K threshold is quite low, it's a shame that a lifetime of work is so heavily taxed. Especially given how the government is spending it...
My personal theory about this high inheritance tax is that it's real purpose is to keep people in a slave-like state in respect to big corporations and the state itself. Having too many people escape the rat race and thus having time to think for themselves or freedom to go elsewhere is seen as a real danger for those in power.