Stop welfare benefits too many people are taking advantage and working cash

Background

As there is a hundreds thousands of people receiving welfare benefits and working cash in hand getting tax payers money everymonth Would like the government to make stricter rules like only British citizens can receive benefits as it’s unfair

Additional details

As the people receiving welfare benefits are more healthier than working people and its unfair that tax payers have to pay for other people’s rent and also those people are working cash in hand aswell