The last 196-years of secular government has killed, let's just say, way more than ~1.0-1.7 million people. Even the nice ones like France, which killed ~1.5 million Algerians from 1954 to 1962, so small by comparison to other atrocities you probably didn't even hear about it. That's before even considering the Reign of Terror, Communist Governments of all kinds, US Forced Sterilization in the name of science for decades, and on and on.
And as for the Spanish Inquisition, despite the horrible memory, modern estimates now show the total death count was about 3,000-5,000 people over a 350 year time span. At worst, 14 executions per year. Secular courts were far less forgiving. Even Wikipedia has updated their numbers accordingly.