I think we just had a misunderstanding. Had my parents listened to all the advice given to them about me, I'd have ended up in conversion therapy, so I do understand. When it comes to advice, some people (maybe most) just want to bloviate, not elucidate.
It sounds like you are being proactive (acting in anticipation of future problems, needs, or changes).
The reason I suggested Minecraft modding and video-making in particular is:
1: It turns his current passive engagement with it into an active, creator role. Most Minecraft mods and media seem to be made by kids, or at least people who started when they were kids. I've read more than a few accounts from people who ended up in CS careers because of Minecraft.
2: Java and A/V are great skills to learn for a variety of possible career paths. Java also translates easily enough to C# and .NET, which also has plenty of career paths.
I don't have kids, but I know enough parents to know how insecure they get when they realize how woefully unprepared their parents and society left them for it, and how often people give lots of useless unsolicited advice. I tried not to do that, but I can see how it might come off that way if you're constantly fending off useless, unwelcome advice and criticisms.