Oh dear, are you pretending to be thick or do you actually believe this?.
What most 'liberals' as you refer to them support is an element of social democracy with aspects of democratic socialism.
https://en.wikipedia.org/wiki/Social_democracy
Social democracy is a political, social and economic ideology that supports economic and social interventions to promote social justice within the framework of a capitalist economy, as well as a policy regime involving a commitment to representative democracy, measures for income redistribution, and regulation of the economy in the general interest and welfare state provisions.
Social democracy thus aims to create the conditions for capitalism to lead to greater democratic, egalitarian and solidaristic outcomes; and is often associated with the set of socioeconomic policies that became prominent in Northern and Western Europe—particularly the Nordic model in the Nordic countries—during the latter half of the 20th century.
The kind of socialism advocated by a vast majority of the political left is akin to the Nordic model, not Nazi Germany or Communist Russia.