Sex, for instance, is perfectly fine within the lifelong bond of marriage. However, when we use it as a source of pleasure, we find ourselves in all sorts of painful and distracting situations.
You know what puts a person in a painful and distracting situation? Not masturbating. But nooooooo, can't do that, Jesus says that masturbation is adultery:
"Matthew 5:28 – “You have heard that it was said, ‘Do not commit adultery.’ But I tell you that anyone who has looked a woman lustfully has already committed adultery with her in his heart.”"
As for intoxication, there are several problems. Other than the fact that you are out of control (depending on the intoxicant), you also have the tendency to get wrapped up in it and become less productive.
It's interesting that the Bible doesn't actually ban any drugs or alcohol. Hell, Jesus was such a lush that he couldn't pass a glass of water without turning it into a fine chianti. Word on the street is that if he happened upon a pretty little thing having a casual sip of water, he'd miracle it into wine as it was falling down her esophagus. Crazy! I know! But probably justifiable since Genesis says that every plant on the earth was made for us to eat:
Genesis 1:29 - Then God said, “I give you every seed-bearing plant on the face of the whole earth and every tree that has fruit with seed in it. They will be yours for food.
I mean, literally, God is saying "Did I hear someone say pot brownies? Pass the plate, man."
The real problem is trying to define your life by pleasure, which is fleeting.
Dude, you live in a world in which eating shellfish is an abomination that will cast you into hellfire and that slaves are Bibically told to obey their masters. Anyone who doesn't seek out a life of pleasure before they're cast into eternal damnation is just being practical.
Sadly, I have known many people who have had their life ruined by drug addiction......and I thank God that He loves and forgives even the worst and will remove them from the things they can't leave on their own.
So God loves and forgives and will remove people from the things they can't leave on their own, yet you know people who have ruined their lives due to drug addiction? Those two sentences contradict eachother. Please spend the rest of the holiday season visiting kids in terminal cancer wards and telling them that God loves them. See how far that goes to consoling their families when the kid can't overcome the tumors that are overtaking his body. "Thank" God; I'm sure that'll go over real well.