They have the means.

At this very moment, the whole human race is standing in the shadow of a peril so great, a slavery so imminent, that the most savage war of conquest ever waged would be a mere skirmish, by comparison!" Mechanically he labored on and on, turning the tremendous problem in his brain, striving in vain for some solution, some grasp at effective opposition.

And, as he thought, a kind of dumb hopelessness settled down about him, tangible almost as a curtain black and heavy.
"What shall I do ?" he muttered to himself.

"What can I do, to strike these devils from their villainous plan of mastery ?" As yet, he saw nothing clearly.

No way seemed open to him.