Final answer:
Samuel Gompers of the AFL valued economic gains and used strategic strikes for achieving higher wages and shorter workdays, but he was conservative towards political ties, likely disapproving political protests that risked aligning with political parties.
Step-by-step explanation:
Samuel Gompers, the leader of the American Federation of Labor (AFL), focused primarily on economic gains for its members, advocating for higher wages and shorter workdays. The AFL used strikes as a tactic to achieve these goals and was conservative compared to other groups, often avoiding political engagement unless it directly affected working conditions.
Given Gompers's conservative stance and his history of caution towards political affiliations, particularly with the Populist Party, he would likely be least supportive of a workers' march to protest for political changes, such as increasing the number of unions on strike for a shorter workday.