I think everyone is entitled to a basic standard of living and social inequality harms everyone in society. In less equal societies crime is higher, healthcare costs are higher, high income families also pay out more for basic services like childcare and transport because people paying individually rather than collectively increases costs and decreases quality for most.
In addition children raised in poverty have poorer educational outcomes, health outcomes and society deteriorates for years to come, we will be paying for our recent choice to increase inequality for years and years to come. This is not about individual 'fairness', it is about the collective good.
Personally I would choose to reduce poverty by resources that benefit many, increase employment opportunities and disproportionately impact lower income families.
So for example I would have nationalised subsidised childcare and subsidised transport, probably an increase in social housing. However I am not opposed to individual benefits if they increase the goal of reducing social inequality because of the long term benefit of this to everyone.
Also most of the low earners I know work hard, made a lot of effort and still are poorly paid. Many of them didn't have the same opportunities as others. They were unable to access adequate education, healthcare or family life. Let's not pretend higher earners work harder, it is a fallacy pedaled by conservatives (small c deliberate)