An ISA isn't tax avoidance (and as the tax thresholds are now so high for interest, and interest rates so low, it's a moot point anyway.
There really aren't many scroungers.
What is more common is people who are fundamentally unemployable in the modern workplace. If you can't count and can't spell, your employment options are really quite limited.
A life on benefits isn't fun, I really can't bring myself to begrudge someone £73.10 a week when Iain Duncan-Smith spends fifty quid of my money on one single breakfast, and Ian Austin helped himself to £20,000 of my money to do his house up, before "flipping" his second home and helping himself to another twenty grand of my hard-earned.
Ian Austin, hater of Corbyn, ironically thinks immigrants are the real scourge of the taxpayer