The difference being that if you don't buy drugs online voluntarily you won't get jailed. If you don't pay your taxes you, eventually, will. It's not moral to

The difference being that if you don't buy drugs online voluntarily you won't get jailed. If you don't pay your taxes you, eventually, will. It's not moral to ask citizens to pay taxes, but it's not immoral to pay taxes: you do it because it's the least harmful option available to you.