I have previously stated I'm not going to continue this religious argument because I don't really have the energy to do so, nor am I here for a religious turf war.
All of your questions can be answered by the Vaticans official catechism if you chose to look.
You don't have to reply but if you do try to provide an actual argument instead of pointing to a document that doesn't contain answers to the questions raised nor forms a rebuttal of any argument presented.
1) The theory of the double effect as used by Thomas Aquinas can be used to justify suicide. At least in certain circumstances.
2) Nothing in that document supports your claim of Church dogma remaining unchanged for 2000 years.
The truth is that the catholic prohibition on suicide didn't originate in the Bible but in the teaching of Augustine who in turn borrowed it from the heathen philosopher Plato (human-beings are property of the gods, plural which directly contradicts the christian faith, and thus it would be the equivalent of theft) and neo-platonism. His arguments are spurious at best and easily refuted and they clearly stem from a pragmatic need: the power of the Church was directly proportional to the number of believers and certain early christian sects were all too eager to become martyrs in order to get to heaven quicker or even downright killed themselves off like the Donatists.
I didn't write my earlier post to convince you of anything nor to draw you into a debate: I merely wanted to point out the flaws in your statements so that they wouldn't confuse others.
I fail to see what catholic dogma has to do with the question posed by the OP. If it goes against the Bible it's clearly wrong. Stretching the meaning of a commandment beyond all reason while completely disregarding the fact that no suicide in either the Old or the New Testament was expressly condemned amounts to abuse of Scripture. That it was done for political gain makes it all the more vile.
Christ himself warned of false teachers:
"Beware of false prophets, which come to you in sheep's clothing but inwardly are ravening wolves." (Matthew 7:15, King James Bible)
Augustine even had the temerity of claiming suicide was a graver sin than actual murder or any other mortal sin: he claimed Judas' betrayal of Jezus was a lesser offense than the fact that he hanged himself. Betraying the Savior of mankind and playing a crucial part in the heinous murder of the son of God (in effect Judas all but killed Him himself by delivering Him into the hands of those who wanted Him dead) is somehow a lesser offense than killing oneself... While Jezus clearly was completely innocent and all of humanity is said to be subjected to sin which is why He had to come into this world to die for us.
Given that Christ hadn't died yet when Judas betrayed him clearly Judas was very much a sinner. Augustine thus claimed that murdering an innocent man was a lesser sin than the self-killing of a sinner.
By Augustine's dubious logic Hitler's suicide was a worse sin than the wholesale slaughter of millions he instigated. If he hadn't killed himself he would presumably have met a better fate in the hereafter than all those poor souls who hunted by pain and misery chose to end their existence. Appalling.