The State guaranteeing employment is still not enough, because the Keynesian systems post ww2 tried just that and began to creak and break in the 1970s leading to the neoliberal counter-reform faction winning power.
Oh totally, a welfare state cannot function within capitalism long term regardless. I kind of clumsily tried to make the point that it is at least manageable during periods of industrialization and growth, because there are jobs. Obviously under capitalism this will never happen long term.
It /should/ be easy to refute but whether or not we have the right conditions to have our ideas take hold is another thing entirely.
Most people think only of the spectrum represented in the parliament. So when they think "communists" or "leftists" they think of whatever succdem party the media is currently calling "far-left", and then nothing else. So we are already set back enormously because they keep making things worse (and moving to the right). In the minds of most people, they have to choose between eroding welfare services + higher taxes vs eroding welfare services + lower taxes, and obviously most are gonna choose the latter.