Understanding the Wisdom Behind Islamic Rulings on Relationships

As-salamu alaykum, dear brothers and sisters. I've been thinking a lot lately about the guidance we have in Islam regarding relationships and marriage, and I wanted to share some thoughts and ask for your insights. Living here in Europe, I'm surrounded by a culture where casual relationships are completely normalized. People genuinely don't see what's wrong with them-they've become so accustomed to this lifestyle that they don't recognize the problems it creates. When I try to explain why Islam restricts intimacy to marriage, they give responses like: 'Of course sex should be with someone you're close to-it's intimate!' or 'Just use protection if you're worried about pregnancy.' They miss the deeper wisdom entirely. I'm looking for meaningful discussions about how these relationship norms actually affect society-not just individual arguments they can easily dismiss. Things like what happens to family structures, emotional well-being, and community bonds when relationships lack the commitment and sacred framework that Islam provides. If anyone has reflections on the broader social wisdom behind these Islamic teachings-beyond the basic 'it's haram' explanation-I'd really appreciate hearing your perspectives. May Allah guide us all to what's best. Jazakum Allahu khayran.