It's ironic how now everyone is bringing out the slippery slope arguments, after years and years of tax cuts for the rich reduced social services and increasing wealth inequality, all based on the promise that cutting taxes for the rich would benefit the average person. Well that was a lie, after several decades of increasing efficiency and economic growth the middle class can look back at essentially at no increase in wealth and the only reason that household disposible income has somwhat increased is because now both adults in the family are working (+plus often high school and college kids are working large proportions as well).

If there was ever a slippery slope it was the slippery slope of cutting more and more taxes for the rich.