Eh, around here there's still more available job postings for pharmacists than there are for welders, distribution center workers and stockers.
Obviously, people need to have the ability to evolve. There are still plenty of people employed as nurses, just now you actually have to be good at it to keep your job.
I went through a couple semesters of nursing school and there were quite a few in my class that had no business at all being nurses. People who should NEVER be allowed to start an IV or measure and give meds. But, they passed and got jobs.. Hopefully the bad ones have since been weeded out.
(I'm talking about people who still had to look up whether a ML and CC were the same thing AND they were already drawing up doses for people in a nursing home setting)
Obviously, too much of a surplus can be a really bad thing.. Look at all the people who learned machining or planned on factory work or the people who major in hospitality and customer service. Congrats, your jobs have been outsourced to China and India. I have a friend who was a travel agent, but, Expedia and Orbitz and all those other companies came along and just about no one uses a travel agent anymore. If you managed a call center, forget finding a job, your job is in India now.
At least pharmacists, nurses and doctors can't be outsourced. They can't send all the nursing jobs to China. Well, until a Star Trek like transporter system exists, then we'll probably build all our hospitals over there and just teleport sick people over there and take advantage of their labor prices. Well, unless by then we've turned into a third world country and China is using our country to teleport their sick people to..
Do what you love, be great at your job and have a backup plan. That's really all you can do no matter what your chosen field is.