Why does senator Morrill consider they United States the paradise of the laboring man?

At that time, senator Morill advocated the government to provide the incentives for workers who want to come to united states

Explanation:

The phrase 'paradise of the laboring man' came out when he is discussing the working in united states. At that time, we need a lot of workers due to the industrial revolution. So we try to appeal to immigrants to come and join us to improve our economy.

He believe that the working condition at that time was terrible. Bad quality food, poor housing, low wages, etc.

He argued that to make united states more appealing, we need to make this country the paradise of the laboring man by improving all of the things above.