1) Outside the Church there is no Salvation "Extra Ecclesiam Nulla Salus"
It seems, as with almost all who aren't Catholic, you have a misunderstanding of this dogma. What it seems you think we mean by it is Feeneyism, which is a heresy. The problem is there are many exceptions to the rule that have always been believed. The Church has and continues to teach that She is necessary for the salvation, however, as you can see in the Pope St. John Paul II quote when you read the whole thing, there are instances where involuntary lack of knowledge (ignorance) is forgivable and with the grace of God you are still saved. The Church cannot put a limit on whom God saves, but She cannot teach that She isn't necessary. If you want me to go in deeper, I definitely can.
2) No Salvation of the Unbaptized
Again, here you cite without understanding what's being said. If this is to be taken in all cases, then the Church is rejecting baptism by blood and desire, which She doesn't deny. If what you said were true, in your own little note you add "limbo" which isn't hell. The truth is that the Church has never dogmatically declared what happens to unbaptized infants. Hence, in the latter quotes, you have this idea of hoping that the child is granted a pass into heaven.
3) Usury
Usury and Interest are not synonyms. A good short read is "The Perennial Teaching of the Church on Usury". Even in the Fifth Lateran Council, you have the Church declare that "montes pietatis", which many accused of usury, as not being usurious. They asked for interest.
4) Death Penalty
The State does have the overall authority. The Church doesn't deny this. What the Church is questioning, which I'll show from the pre-2018 Catechism, is to what extent is it permissible. "2267 Assuming that the guilty party’s identity and responsibility have been fully determined, the traditional teaching of the church does not exclude recourse to the death penalty, if this is the only possible way of effectively defending human lives against the unjust aggressor. If, however, nonlethal means are sufficient to defend and protect people’s safety from the aggressor, authority will limit itself to such means, as these are more in keeping with the concrete conditions of the common good and more in conformity with the dignity of the human person. Today, in fact, as a consequence of the possibilities which the state has for effectively preventing crime, by rendering one who has committed an offense incapable of doing harm—without definitively taking away from him the possibility of redeeming himself—the cases in which the execution of the offender is an absolute necessity “are very rare, if not practically nonexistent” (John Paul II, Evangelium vitae 56)." Even here in 1997, you see a development of doctrine where the need for a death penalty is deemed rare. Pope Francis claiming it to be "inadmissible" is dependent on what he said here, "Today, however, there is an increasing awareness that the dignity of the person is not lost even after the commission of very serious crimes. In addition, a new understanding has emerged of the significance of penal sanctions imposed by the state. Lastly, more effective systems of detention have been developed, which ensure the due protection of citizens but, at the same time, do not definitively deprive the guilty of the possibility of redemption", as being true. If this is true, then your grounds for using the death penalty are shaky.
5) Slavery
Conflating two different ideas of the time. Unjust and just servitude. Slavery/servitude is the same word in Latin, i.e. Servus Dei can mean "servant/slave of God". Dum Diversas refers to captives in war, which servitude from a war was considered just at the time, same with Romanus Pontifex.
Sicut Dudum (1535), Sublimus Dei (1537), Cum Sicuti (1591), Commissum Nobis (1639) all condemn the enslavement of Indians and Africans (not as a part of war). This would have been considered unjust servitude. Earlier than all of these mentioned enslaving fellow Christians was already frowned upon, in general, and by the 17th century Europeans basically stopped enslaving war prisoners. You also haven't shown where the Church said it was okay and then said it wasn't (like you allegedly did in the other sections).
In none of these is there any "contradiction" as you put it.