The reality of the work that people describe as unskilled is that it actually is skilled, albeit it pays near minimum wage. Picking vegetables, deboning chicken, recycling, warehouse work quickly and efficiently is skilled. Due to my work, I meet huge numbers of eastern Europeans on near minimum wage levels doing work which actually take skills.
The real scandal in this country is a failure by employers to properly train UK staff.
A lot of the Eastern Europeans are young, well educated and many come over with recognised skills (eg HGV licences, carpentry or experience of agriculture).
Nowadays UK employers who thirty years ago would have paid staff to train now expect staff to pay for their own training. Examples include paramedics, police, HGV, cabin crew, food hygiene certificates, even getting DBS (CRB checks).
Big business is not going to lose their easy access to cheap skilled labour
UKIP's real agenda is to dismantle a lot of the employment safeguards we enjoy like maternity rights and disability rights (many of which are safeguarded by European Directives).