We were saying the other day about not being too strict, cult-like, or weird so as to cause our children to rebel...

When you say it's demonic or evil, you better be "damn" sure, or that's the fastest way to alienate your children and cause them to rebel or even become black sheep.

It seems like a convenient shortcut to just condemn and play the Baptist minister -- it takes less effort than looking into it, making distinctions, referring to theological principles. But if you're just reacting to something that's not part of your generation, part of your childhood, and you condemn it just because you don't like it or have "no use for it" -- then woe unto you! Your kids, who WON'T be thus biased against an innocent video game (for example) will RIGHTLY peg you as an old "boomer" who is just WRONG and probably wrong about many other things.

They know more about said video game than you, probably saw their (good) friends play it, NOT become evil afterwards, and maybe even played it themselves. They'll say, "My silly Mom/dad thinks this is from the devil! hahaha" and you just lost their respect.

Again I say: beware. Don't take shortcuts. You get out what you put in, you reap what you sow. There is no free lunch.

And you can't condemn everything. Your kids are NOT just going to pray and listen to Gregorian chant all day long. If you condemn "everything" as satanic, they're just going to give up and say "screw it". You want to save your "satanic" label for the things that are TRULY demonic and lead to dabbling in the occult. You have to pick your battles.

"poor use of time" and/or "not created by a Traditional Catholic with a Trad Catholic worldview" does not equal demonic.

And, there is such a thing as harmless fantasy. Just for starters, as long as it's portrayed as fantasy (i.e., NOT this real world we live in) that's a huge wall between them and the occult. That's one problem with Harry Potter. It takes place in the REAL WORLD that we live in, not some magical fantasy world or dimension.

Thank you for that last part.

And, there is such a thing as harmless fantasy. Just for starters, as long as it's portrayed as fantasy

Right.  Like CS Lewis or Tolkien.  Or even Star Wars.  The former had Christian undertones, so those stories have a lot of benefit to them.  George Lucas' star wars has a mix of Christianity and Eastern Mysticism.  But no child is going to abandon Catholicism for "Jedi-ism" because it's clearly fantasy.  The benefit of star wars is that George Lucas purposefully kept the battle lines between good and evil clearly drawn, and even showed how unchecked emotions can lead to evil and self-control leads to good.  This kind of basic, natural law, common sense appeals to both young and old, and that's why star wars is so popular.