There are two separate issues in this whole debate which seem to get conflated time & time again ... sex-work is done by unwilling women, and women are targets for human trafficking.
Trafficking:
I do not know of anyone (other than those who profit from it, of course) who does not think human trafficking is abhorrent and that the perpetuaters should pay the maximum penalty our laws allow. Our police and legal resources should be mobilized to this end.
"Unwilling" women:
The single huge fallacy of all the drivel about sex workers being "driven" to it by financial necessity is that 99.99% of working people are "driven" to it by necessity. Do you think builder Bob WANTS to stand out in the rain getting his knuckles all arthritic from the hard manual labour of building your house? Do you think cleaner Sue WANTS to clean out the toilets at your office/nightclub/whatever? We work because we HAVE to in order to survive and have a reasonable standard of living.
The difference is in the CHOICE of what work to do ... and this choice is dictated by a whole host of things. Ability, education, opportunity, economics, etc. Some have less options than others, so they will naturally gravitate towards the economic opportunities within their reach. This is an inescapable law of life and human nature.
It is a fact of life that human females have a financial opportunity when it comes to sexual services ... males in general want more (quantity/variety/kink/whatever) than is available to them normally, so they are prepared to pay ...
Are most women in the sex industry unwilling? Of course they ARE! Let's face it, your average punter is no catch ... however, do you really think the young chap/chapette who serves you at McDonalds is WILLING? Hell, no ... they'd much rather be ANYWHERE else.
... and finally:
My only question (morally speaking) is did the lady enter this industry of her own free will? If yes, then she deserves no more (and no less) pity and protection than the people who work in any other menial job. If no, by all means ... get her help to get out ... but do NOT confuse the two.