I suspect that if that ruling was made, then many other drugs being made at home for personal use might become legalized, at least unless states decide to go and ban it too. Note that I am not taking a position here on if that's desirable.

That's arguing around the point.

If the law is broken, fix the law. Don't pervert logic to pretend that the existing law dictates what you want is correct.

If Roe v Wade is based on faulty logic, cool - overturn it. But it then becomes Congress's responsibility to replace it with the correct version.

The federal government isn't supposed to police people's personal behavior. "Federal" comes from "federation" as in, the group of states in the union. It's the job of the legislature to write the laws, the job of the judiciary to interpret the laws, and the job of the states to do these things for areas that don't rise to the level enumerated in the Constitution.

When you get it twisted, you end up with this tug-of-war where corrupt politicians try to put biased judges on the bench to mold the rules to their whims without actually having to pass them.