Unfortunately from my experience I would have to put a lot of UK workers into the lazy category. A large amount of young UK workers seem more interested in their social life than attempting to do any work. They turn up late, go sick at the drop of a hat and scream that they know 'their rights' if you attempt to find out why they are not performing. This is in stark contrast to a foreign worker (mostly students) who are well educated and not only eager to work but to do a good job for you whilst employed.
I watched a reality series that was following workers in a shopping mall. One of them, a young 19 year old English man was employed by an independent sports shop retailer. He turned up late a couple of times and then spent a lot of his time hiding out in the stock room. His employer had CCTV cameras around and discovered what he was up to. He then gave him a pep talk to try to encourage him to do the job he was employed for. But when the worker retuned home at the end of the day, he complained to his mother who gave him every sympathy and told him his employers were being unreasonable! In reality she should have told him to get a move on and stop being so lazy! That seems to be typical of the type of young worker we find in our industry and does not encourage employers to give them a chance. There is also an extra cost to the employer in time spent having to manage the lazy workers who 'know their rights'. The employer has to ensure that they follow the correct legal procedure when dealing with these people or be faced with a tribunal claim. This is another good reason why you would choose a hard working foreign worker over a lazy UK one. If we could rely on UK workers as much as we can foreign workers, I would always choose to employ from the UK.
I also watched the 1949 benefits programme and was so impressed with the young disabled man who just wanted to be given a chance, I am so glad that he got a job in the end. The problem with employing anyone with a disability is the hoops that an employer has to jump through to ensure that they are providing the right kind of working environment for them. Apart from the risk assesments, you have to check that the hours they are working are suitable for their disability, the equipment you provide will not add to any health issues if it does the employer will probably have to buy other suitable equipment, you have to make allowances for the fact that they could be off sick more often than other employees and if they need medical treatment on a regular basis you have to allow them time off for this as well. I am not saying that any of these conditions regarding employing disabled people is wrong, but when you look at what an employer is faced with, no wonder they will take the easier option.
I am sorry that I have given such a dispiriting answer to your question, our own company do employ some fantastic young UK workers, but as a percentage these are far outweighed by the amount of available eager foreign students that are ready and willing to work.
Thanks
Sue