ANYONE that can offer the UK what we need, in ways of employment especially, should be welcomed here
Won't happen though, the sort of very close FTA 's we need will require relaxation of immigration rules for said countries.
But of course the huge problem with your argument is that if we allow in anyone with relevant skills, ready to go, what incentive is there for UK companies to upskill existing employees or train our young people... none.
Without going into details, my DD is doing a health related degree, in which there are huge shortages in the NHS, 3 years on from the brexit vote, she gets zero help, even on placement she has to pay additional travel and accommodation costs plus woks for nothing whilst on the placement, Matt Hancock has not hinted this is going to change, most of the people on her the course are planning to work abroad.
So we'll be importing them from the 3rd world instead :( Well done!