This is what you do:  you vote for the parties and politicians that are genuinely interested in guaranteeing basic needs (food, water, shelter, health, and electricity)  for the entire population.  You don’t vote for the parties and politicians that do not have that as part of their campaign platform.  

What would be best is if progressive taxation was exponentially increased in order to achieve that.

It doesn’t mean everyone has equal wealth.  It doesn’t mean poor people are sitting around in Jacuzzi’s, sipping champagne, and listening to Chopin.