I agree. Like I stated before, God's influence makes it's avatars want to annihilate the human race, as they all seem to think of humans as "parasites" to nature and earth. So, when Garou took that power, even if he could resist it better than anyone else, he still ended up acting in a reckless manner that resulted in humanity becoming extinct (or almost extinct, considering Blast and Saitama were still alive by the end of it). Everytime Saitama hits him with punches, he seems to wake up more and more.. which is eventually shown by his mask cracking and revealing his real face.