There's more to it. The biggest problems,in my opinion,is not the fact that poor Joe is benefiting from not to so poor Jack's tax payments via benefits. The problem starts when there's no end to the support. For instance, you can be on housing benefits for years and that's wrong. The system is poorly implemented and some deeply structural problems never get addressed ( e.g. long term unemployment in a family, single mothers with children and their ability to work+ raise children, etc). Most of these issues require a wide spectrum of solutions,often interlinking with each other,but nobody really want to change anything apart from add/remove a few quid off the benefits payments.