Why worry about those that don't want to work?

We have around 2.5 million people unemployed, so let's say 80% of these want to work and 20% don't. There aren't enough jobs in this country to employ anywhere near the 80% of people that want to work, so why try and force the 20% who don't want to work, into work? If 10 people went for a job and 8 of them wanted the job and 2 didn't, why try and force it on the 2 that didn't want it?, this would benefit no one. An employer would have an unwilling worker, the person that wants a job would still be jobless and either way, just as many people would be claiming benefits. There is no doubt we have a certain amount of people in this country that are quite content to live on benefits. Many of these people live week by week, no holiday, no car, living on basic foods and have none of the nicer things in life that money can bring, but they are content to be that way. So why force them to take a job, when it will mean one less job for someone that really wants one? Surely we should be doing our best to first get those into work who want to work, then if their are any jobs left over, laws we already have can be used to make those that don't want to work take them. Some might say that there are people in this country that get a huge amount on benefits and should be made to work, but if these people worked then they wouldn't get a job that paid the amount they get, so it would still be topped up by the government. I have worked most of my life, but have spent some time unemployed and I didn't like it one bit and I suspect most people feel this way. I would be gutted if I had tried for a job and someone else had gotten it and then told me he/she didn't really want the job but were forced to take it or lose their benefits.