That is a fallacy.
FDR nearly wiped out social spending in WW II. Truman and Eisenhower took social spending to a very low level as did JFK.
It was LBJ who was the architect of liberalism.
This crap that FDR is the father of liberalism is plain baseless. His program did not envision having 1000s of programs added on to it. Blame LBJ for American Marxism, not FDR. He is the one who warped Social Security into the monster it is today. LBJ is the one who initiated hundreds of social welfare programs.
As a % of total spending, FDR had social welfare down to 2%--REPEAT, just 2% of total spending in WW II. You know what it is today? 65% of total spending.
Anybody who blames FDR for American Marxism lacks facts.
I meant "founder" in the sense that it was FDR who got the federal government into the "entitlement" business; but you are absolutely right, it was LBJ's "Great Society" agenda that created the Marxist fiasco we are burdened with today.
Does the name Alger Hiss ring a bell?