Why do you think FDR uses the analogy to paralysis to illustrate the problem facing the nation and also a potential cure?

FDR uses the analogy to paralysis in his speech to illustrate the problem to denote that just like paralysis unables a person to move or act, fear makes people unable to act wisely.

Explanation:

Franklin D. Roosevelt became the President of the United States during the time of Great Depression. On 4th March 1933, he delivered his inaugural speech. In the first paragraph of his speech, he asserts "that the only thing we have to fear is fear itself..."

He uses the analogy of paralysis to illustrate the problem of unemployment the nation was facing. He used this analogy to denote that just like paralysis unable a person to move or act, fear makes people unable to act wisely.

a system of cooperative federalism emerged, as the powers of the federal government expanded.