If you can point to any Tory policy that would have provided a greater barrier to the influx of barriers, you might have a point with all the exclamation marks. As it is,you cannot - and the CBI and business in general were very supportive of the influx of cheap labour from eastern europe, since it kept wage costs down and profit margins up.There is nothing business likes more than a large unemployment pool and cheap labour."New" Labour badly underestimated the numbers coming in, it is true, and that is too their discredit, but I cannot recall the Tories of the time raising alarms or offering different systems of immigration and control, nor could they, since the story of recent immigration has been from eastern european members to the EU, over which national governments have only a small input.
The legacy remains. Government do the bare minimum to ensure that wages match the minimum wage criteria. If they were more rigorous in the enforcement of such minimum standards, that itself would provide some disincentive to hiring non domestic workers. Infrastructure development especially in certain urban areas has lagged badly behind requirements, as a consequence of the mistake in forecasting, meaning education and health systems are put under sever strain.
I don't know that this is news either; several of the Labour grandees have already said the same thing. Hopefully, people not just in the UK but across Europe will have learnt some lessons - The pattern of mass human migration for decades has been a kind of osmosis, with economic migrants gravitating towards those more affluent and economically active trading blocs, such as the EU. Some reflection on this is definitely required.