we can have both. just gotta tax rich people a lot more and start taxing religious institutions. tithe to your community healthcare not your church, it's what jesus would irl do.
if by rich people you mean the upper middle class, then yeah.
like, i obviously don't know what everyone on this board makes, but my general impression is that everyone, or almost everyone, who posts here would pay more in taxes than they would receive in benefits with a euro style social welfare and taxation system.
if that doesn't accord with your understanding of what it takes to fund a generous welfare system, then i don't think you have a realistic funding model in mind.