Maybe it's no so much whether sex is "addictive" like a drug, but whether it's a proper healthy addiction. People tend to habitually eat and sleep and pee, so maybe we should stop doing those things? Of course not. There's a proper place for those things, as there is for people pairing up, marrying, and working productive jobs and such to better support their natural proliferating of their numbers.

The liberal war protesters of the rebellious 1960s were partially right about "Make love, not war." Having children gives people something productive to do, to stay out of trouble, so yeah "making love" is a great idea, if it's all about building lasting families and welcoming children to come to life, rather than fighting amongst ourselves needlessly. We all need such useful things to do. Besides, having babies is generally very good for growing and stimulating the economy, far more safely with so much less mess, than war ever was.