Just make it so that accessing on-line porn sites requires solving a random math problem. Maybe even limit the amount of time . . . or grant 1 minute of viewing for each correct answer out of 10.
• Partial nudity: Long division, square roots, reciprocals.
• Full frontal nudity: Algebra
• Self-stimulation: Trigonometry
• One-on-one: Pre-calculus
• Threesomes: Differential calculus
• Kinks: Integral calculus
Either people would learn math, or the porn industry would crash.
Win/win!
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No love for Hamas, Hezbollah, Iranian Leadership, Islamic Jihad, other Islamic terrorist groups, OR their supporters and sympathizers.