I guess Skull Pilot's projections would hold true for some that already have disability insurance that is portable between employers.
But regardless, income redistribution programs such as Social Security never work here's why they don't.
http://www.independent.org/newsroom/article.asp?id=1155
1. Taxes for the purpose of income redistribution discourage the taxpayers from earning taxable income or raising the value of taxable property through investment. People who stand to lose part of their earnings respond to the altered personal payoff. As a result, they produce fewer goods and services and accumulate less wealth than they otherwise would. Hence the society is poorer, both now and later.
2. Transfer payments discourage the recipients from earning income now and from investing in their potential to earn future income. People respond to a reduced cost of idleness by choosing to be idle more often. When they can get current income without earning it, they exert less effort to earn income. When they expect to get future income without earning it, they invest less in education, training, job experience, personal health, migration, and other forms of human capital that enhance their potential to earn income in the future. Hence the society is even poorer, both now and later, than it would have been merely because taxes discourage current production and investment by the taxpayers who fund the transfers.
6. Just as recipients engage in internecine warfare, so do taxpayers, who resent disproportionate burdens in funding the transfers. For instance, young people now learn that their Social Security taxes are going straight into the pockets of retired people who as a group are better off. Young taxpayers also learn that they probably will never recoup their own contributions, unlike the present-day elderly, who have realized an extraordinarily high effective rate of return on their contributions. (Currently the average married couple gets back everything ever paid in, with interest, in just over four years. )4 Black Social Security taxpayers learn that, because of their lower life expectancy, they cannot expect to receive as much retirement income as the average white person can expect. Taxpayers who consider themselves disproportionately burdened grow to resent their exploitation by the tax-and-transfer system. Therefore they give more support to politicians who promise to defend their pocketbooks against legislative marauders, and they strive harder to avoid or evade taxes.
15. In the end many citizens will pay taxes to finance the transfers. Even if no one tries to resist the taxes or alters his behavior in supplying labor and capital, the cost to taxpayers will be more than one dollar for each dollar taken by the government, because it is costly just to comply with the tax laws. Taxpayers must keep records, research the tax rules, fill out forms, and all the rest. These activities require time and effort withdrawn from valuable alternative uses. Many people, even though they intend nothing more than full compliance with the law, hire the expert assistance of accountants and tax preparers—the tax rules are so complicated that mere mortals cannot cope. Use of resources to comply with tax laws makes the society poorer.
According to a study by James L. Payne, just the private compliance expense of taxpayers plus the budgetary and enforcement expense of the IRS add $270,000,000 to the tab for each billion dollars of spending by the federal government.7
17. Just as taxpayers must employ resources to comply with the tax laws, so recipients of transfers must employ resources to establish and maintain their eligibility to receive the transfers. For example, recipients of unemployment insurance benefits must visit the department of employment security and wait in long lines to certify that they are indeed unemployed. Sometimes they must go from place to place applying for jobs, which they may have no intention of accepting, in order to demonstrate that they are “seeking employment.” Recipients of
disability insurance benefits must visit doctors and other health professionals to
acquire certification that they are indeed disabled. In each case, more
resources are squandered, and society is that much poorer.
As James Madison remarked more than two centuries ago, “one legislative interference is but the first link of a long chain of repetitions, every subsequent interference being naturally produced by the effects of the preceding.”8 When the government created Medicare and Medicaid in 1965, for example, it set in motion a train of events that led inexorably to the subsequent “crisis” of escalating health-care costs and thence to the bigger government now being wrought by congressional efforts to deal with this artificial crisis.
But do keep telling yourself that the government can provide better for us than we can provide for ourselves. It's a typical entitled attitude, the government needs to wipe my ass because I can't wipe it for myself.