I am not sure the Church ever supported slavery. They may have, as they did with other issues, turned a blind eye to it, but I dont think they actually condoned it.
That being said, the rules of the church are not the same as the teachings and tenets of the Church. Thus, they can easily allow the ordination of women (and in time I beleive they will), without compromising their tenets. That was an administrative decision born of the male dominated society of the middle ages as there use to be Women priests and probably will again. The same with Married priests. But that is a harder subject as the Church is a hard task master and demands a lot from its officials.
Yes, Pope Benedict XVI is very conservative, but as Baker said, he was not chosen to be an innovator, but to be a transitioner. By the time the next Pope is chosen, we may have a lot more Bishops and Cardinals like Walter Sullivan, than Joseph Ratzinger.
Your time will come eventually. The only problem with that sentiment is that 'eventually, we all are dead'. But the Church will continue, even beyond us.
No, one is active and the other passive. To see someone get mugged and not shoot the perp is not the same as condoning mugging.
I fully concur, and before Pope John Paul II, I doubt that any non-catholics would have cared or voiced an opinion. So at least in that, I find it encouraging that others are vocal, even if as you say, it will not make a difference.