Final answer:
The law threatened to enslave free African Americans and deny them their rights. James Forten protested against it
Step-by-step explanation:
The law that James Forten protested was a Pennsylvania law threatening to enslave free African Americans. The law would have operated by allowing any African American who couldn't prove their freedom to be sold into slavery. Its purpose was to maintain the institution of slavery and to deny freedom to African Americans. James Forten, an African American activist, protested against this law because he believed it was unjust and called for the abolition of slavery. He argued against the consequences it would have, such as stripping free African Americans of their rights and subjecting them to the horrors of slavery.
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