All morality is purely subjective? It's not individually dependent, its communally and socially dependent with some pretty clear agreements on a lot of big ticket items like murder and pedophilia.
Feelings on moral degradation is certainly purely subjective.
There can exist an objective morality. I'd even be of the mind there is. Mankind is not good at grokking it (in the Christian conception because of simple inability to live up to it and the world being fallen, in other conceptions because there isn't an objective morality at all, and in others because the extent of moral reasoning amounts to the Golden Rule writ large ala Kant's Universal Imperative). Even when/if man does get it (or claims to), attempting to enforce it can and has caused larger issues than a more laissez-faire approach (Puritan Massachussets executing Quakers for heresy because obviously the spread of a religious falsehood against the moral order of society as determined by the Puritan assembly in the colony was sinful and wrong as an example I've been reading on lately).
And individual behavior regarding moral matters is individually dependent--communities and society can influence individual perspective, they cannot settle it (elsewise we'd see the successful elimination of murder, of robbery, and of sin by the proper social and community pressures and influences--which is impossible. There can be, at best, a reduction in such things--there always exist individuals who descend from the moral state of their surroundings to something worse--or, conversely, rise above their surroundings to the better).
Murder and pedophilia are indeed large layers of overlap in that Christian/Kantian/empty/etc. moral division.
That two people can disagree about something doesn't mean that there isn't some objective standard.
Indeed. It does mean they operate off of differing standards, however. And settling whose objective standard is the right one has been a running debate even within Christian morality, much less human morals.
Well, you've seen the stats on how difficult it is for a former prostitute to settle down with one partner?
No, unless you're referencing that batch of graphs again?
Which, if you are, don't cover that. The only one that can be tracked down covers the happiness in marriage of those who've been in previous relationships. Prostitutes and porn actresses probably don't characterize themselves as in a relationship with their clients/coworkers.