OK, let's talk about drugs. Assume you are a capitalist. You have a large number of workers who are not very intelligent or rational, but can perform certain jobs your business needs done. Rabid Liberals, maddened with envy for your success, approach your useful but gullible employees and persuade them to take drugs. You go bankrupt.
Your employees did not take drugs because it made them happier. They did it because they lacked independent thinking. And there are many foolish people.
Are you entitled to a remedy? How about prevention?
In this case, you made poor business decisions by hiring irrational and unintelligent workers. Because of your poor business decision, not the actions of liberals or the existence of drugs, you went bankrupt.
Blaming others for their your own failures, are we?
People do not exist to make you profits. They aren't your cattle, and to limit rights because you will profit less if people have rights reduces them to beasts of burden, not free men. You have no entitlement whatsoever to the fruits of anyone's labor. You may dictate the terms of your employment. You can require drug testing, you can fire people who show signs of intoxication. You CANNOT restrict the rights of the entire population because you draw your employees from them.
In a free market, Adam Smith's invisible hand will solve your problem. If these people you speak of are incapable of production, for whatever reason, the market will decline to purchase their labor. Others will prosper at the opportunity given by the open jobs. You will get good employees if you refuse to pay for bad employees. The law of supply and demand ensures it.