"If I were to protest, it would be for 3 day weekends."
- "If I were to protest, it would be for 3 day weekends."
"If I were to protest" 「もし私が抗議活動するなら」
"to protest" 「抗議活動する」
"it would be for ~" 「〜のためにする」
"3 day weekends" 「週休3日」代わりに "4 day work week" 「週に4日出勤する」も言えます。