No amount of money collected in taxes will ever satisfy a liberal.
Of course the wealthy could pay more , but a liberal will never ask the real question which is can the rest of us afford for them to do so? Taxing the rich is a placebo to those with pay check envy that somehow think they can make the rich suffer by paying their "fair share".
Perhaps, for once, we should demand that they define what "fair share" means. What percentage of all taxes should the rich pay? What percentage of anyone's income should be the maximum government should be allowed to take in taxes?