There's a difference between "negating the activation" and "not allowing it to be activated in the first place". Mainly that "negating the activation" is done by a card effect that is Chained to the activated card (e.g. Seven Tools of the Bandit). For that, the card must still be activated in the first place before Seven Tools can be Chained (and would then "rub out" that little bit of Duel history).
Jinzo, on the other hand, prevents Trap Cards from being activated in the first place. You can't activate them, so there's nothing to negate, which means Splendid Venus cannot disallow the use of cards like Seven Tools (which is what its effect does). Splendid Venus only comes into the picture once a Spell or Trap Card has been activated, but Jinzo is in effect long before then.
Jinzo wins. You can't activate Trap Cards.
Spiritualism is a bit of an oddball. Perhaps we could get a clarification on this?
Another question: What about Bait Doll? With these two cards on the field, what happens when Bait Doll forces a Trap Card to be activated? Is it incorrect timing because Jinzo is in play (so it's negated and destroyed by Bait Doll), or is it correct timing and Jinzo WOULD negate it but it can't because of Splendid Venus (thus the Trap Card activates)?
Since the ruling below states that it only negates the effect (which Bait Doll does) rather than the activation and effect, it would suggest that the Trap Card is negated by Bait Doll, which means incorrect timing (because Jinzo is around). Therefore Splendid Venus wouldn't matter, and the Trap Card is negated and destroyed. But of course, wordings can be all over the place, so this isn't definite.
• If "Jinzo" is face-up on the field and the effect of "Bait Doll" forces the activation of a Normal or Counter Trap Card, that Trap Card's effect is negated and the Trap Card is destroyed. If a Continuous Trap Card is forced to activate by the effect of "Bait Doll" it will remain face-up on the field meaninglessly until "Jinzo" is destroyed.
