Weeks after a series of sexual harassment allegations roiled the state Capitol, top Colorado lawmakers will meet Friday to review a workplace sexual harassment policy that — in the minds of experts and some alleged victims — may be doing as much to perpetuate a culture of sexual harassment as to prevent it. The questions come amid a growing national reckoning that has toppled giants in Hollywood, the media and Congress and left at least four Colorado state lawmakers accused of making unwanted sexual advances by colleagues, aides and lobbyists. Employers across the U.S., from the private sector to the state’s Gold Dome, are looking at how to best respond to and prevent future cases.