Why were many urban factory workers supportive of the passage of the Homestead Act of 1862?

The 1862 Homestead Act accelerated settlement of U.S. western territory by allowing any American, including freed slaves, to put in a claim for up to 160 free acres of federal land.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.