Did you get that from the DM website?
Down here in Cornwall, FOM hasn't really affected us, few EU citizens come here... mainly agris and tourism jobs, yet wages are super low, companies don't take on young people to train and in non tourist areas of Devon and Cornwall, we've a housing crisis.
I'm not saying none of the probs you list don't exist but to put them all down to FOM is just wrong, we had these issues back in the 80s and 90s too, long before FoM.
Employers are just not prepared to invest in a workforce for several years anymore, in my industry (IT & Telecoms) we now employ one fully trained tech support engineer with all the certifications and 20 semi-skilled technicians who phone him up when they are stuck, they call it "smart hands"
Kit is just so much more reliable, can be configured remotely and network equipment is now being designed that will autoconfigure from the cloud, no on-site skill required or skilled mtce teams.
The work place has changed dramatically across many industries.
In healthcare, despite the vote being 3.5 years ago, we've done jack to encourage UK school leavers to go into healthcare.... why is that?