His only 'defense' in that respect would be the magics Stormbreaker imbues him with. But I'm not sure if that'd give him any resistance to technopathy... Especially on Henshaw's level. /shrug
Bill's only hope of taking a few would be to defeat Henshaw before his technopathic edge could be employed (ie. utilizing offensive blasts, BFR, etc.) -- or perhaps even blocking said technopathy via shielding. Those, however, are certainly not full-proof tactics.
Henshaw takes this more times than not.
__________________
"I am tired of Earth. These people.
I am tired of being caught in the tangle of their lives."
__________________ "I ain't no fraggin' hero. I'm th' main man. I booze.
I womanize. I swear. An' I beat th' living crap outta
anybody I fraggin' feel like."- Lobo