Is it considered sinful for Muslims to sell THC?

[Хahar 🤔]

Not to my knowledge, in general Muslim tend to be more accepting of the use of drugs than Christians are.

A couple months ago I was with my dad and several of his friends, all of whom are observant Muslims, when the topic of marijuana legalization came up and all of them were laughing about how they were familiar with ganja from their youth in Bangladesh. I don't know if any of them actually used it and they wouldn't tell me if they did, but it would be inconceivable for them to talk about alcohol in the same way.

I don't use marijuana or any similar substances (aside from the stimulants I'm prescribed) on the grounds that it's better to be safe than sorry, but it would be very difficult to make the case that any non-alcohol substances are actively prohibited. As an example, tobacco consumption was so prevalent and so strongly associated with Muslims in the Punjab in the eighteenth century that Sikhs are prohibited from consuming tobacco to distinguish themselves.

[Хahar 🤔]

Not to my knowledge, in general Muslim tend to be more accepting of the use of drugs than Christians are.

A couple months ago I was with my dad and several of his friends, all of whom are observant Muslims, when the topic of marijuana legalization came up and all of them were laughing about how they were familiar with ganja from their youth in Bangladesh. I don't know if any of them actually used it and they wouldn't tell me if they did, but it would be inconceivable for them to talk about alcohol in the same way.

I don't use marijuana or any similar substances (aside from the stimulants I'm prescribed) on the grounds that it's better to be safe than sorry, but it would be very difficult to make the case that any non-alcohol substances are actively prohibited. As an example, tobacco consumption was so prevalent and so strongly associated with Muslims in the Punjab in the eighteenth century that Sikhs are prohibited from consuming tobacco to distinguish themselves.

I thought anything "intoxicating" was prohibited per the actual wording.

Well, that's the result of translation conventions. What is prohibited is خمر khamr, which can be translated as "intoxicant" but literally just means "wine". Nowadays everyone interprets this to mean a full prohibition on alcohol, but for centuries there was a prominent school of thought that held that the blanket prohibition in fact only applied to wine. The Wikipedia article on khamr does a good job of laying out the details.