Lowering taxes especially payroll and corporate and overtime taxes has a massive benefit to them. Lower income tax rates are actually very high once it’s understood that any tax or regulatory cost that is a head tax is a tax on them - “employer taxes” is a fairy tale economically, all taxes are on the employees if they aren’t paid if you are fired, if they are still paid then they are on investors/shareholders/capital and those are also negative for growth and employment.
Ending forever wars will allow shifting of budget priorities. A reduction of just 10-15% of defense and intelligence budgets and cutting funding to Israel and Ukraine can pay for childcare for every child in the US easily.
The list goes on …
Better question is what policies did Harris propose that help the uneducated and poor?