Had St. Pius X stood up and condemned BoD for anyone except catechumens and those who consciously embraced the Catholic Faith, then Vatican II could never have happened, since the heresy would have been pre-condemned.
Now you have finally done it to yourself, Ladislaus. You have condemned yourself with the words of your own mouth.
You cannot limit Baptism of Desire to "catechumens and those who consciously embrace the Catholic faith," for two reasons.
1) If water Baptism is strictly necessary in every case, then there are no exceptions to it at all. No loopholes! - as Cantarella has said after you.
2) There is no perfect way to decide who a catechumen is, and there is
especially no way to decide who exactly has consciously embraced the Catholic faith. All this does is shift the question one step further back. Instead of asking "And who is Baptized?" we now must ask "And who has consciously embrace the faith?" Could it not be that God gives to certain virtuous pagans and Protestants in their last agony the chance to consciously embrace the faith? That's all that BoD-ers are defending! You've just endorsed our whole position.
St. Pius X could not have condemned the "heresy" you speak of because it is not a heresy at all. It would have made the faith untenable. He was prevented not only by infallibility but also by good sense from doing what you wish he would have done. Furthermore, the idea of pre-condemning an unmooted heresy is a little strange. That is not what popes do. They do not speculate on every heresy that might arise; they condemn error when it does arise.
But in the nature of the case, Baptism of Desire has been
explicitly taught as doctrine by the Catholic Church since at least the Council of Trent. Is it really possible that all those tracts and books and catechisms carrying episcopal imprimaturs got it wrong? Is it really possible that nobody in the 400 years between Trent and Fr. Feeney noticed that this horrendous error was spreading, and moved to stop it? Of course not, because there is no error here.
I am begging you to reconsider your position. This isn't doing you or anybody else any good. And don't say "But it does no harm in the practical order," as you said above. These divisions needlessly weaken the Church in a time of crisis and the adherence to nonsensical doctrine makes Catholicism look ridiculous. Please stop it now. Repudiate this madness and distance yourself from your less articulate hangers-on (one of whom, I see, has been quite busy in the time I took to write this). Your education I'm sure would be greatly valued in the service of truth.
If you want to talk to somebody privately I'm sure none of the regulars here would spurn a PM, nor would I.