There is no 'few orders of magnitude', because it's conquered, you're not allowed to settle there, and it's not a new frontier.

Yet Mars is a new frontier, and endless, massive numbers of humans would go to Mars in a heartbeat.

Frankly, settlers travelling to the new world in the 1400s faced a far more dangerous journey and living conditions than a trip to Mars.

We're talking first explorers here, so many died on boats, of starvation the first year, on and on.

Modern tech does not remove said risk, but it tips the playing field.

Given that no one has yet traveled to Mars, “faced a far more dangerous journey” seems a ridiculously hyperbolic statement. (Thinking even about the lost colony at Roanoke.)