henry viii breaks with rome -> england spends a solid century in various states of religious turmoil -> anglicanism is eventually established as the national religion -> catholics, including guy fawkes, grow frustrated with james i's protestantisn and try to overthrow him -> guy fawkes night becomes a national holiday in which effigies of fawkes are burnt -> the effigies become known as "guys" after him -> the word "guy" goes from meaning "effigy of guy fawkes" to "poorly dressed man" to "a generic, unspecified man" -> the word "guys" goes from meaning "a group of men" to both "a group of men" and "a group of people, of mixed or indeterminate genders" -> some people remain uncomfortable with the second meaning of "guy"/"guys" because they still associate it more closely with the first -> et voilà