Why did Jefferson and his Democratic Republican party oppose policies that favored manufacturing and trade ? point ) The Democratic Republicans felt they posed a threat to slavery in the South The Democratic Republicans believed they would negatively affect American trade relations with other nations . The Democratic Republicans felt they would corrupt the nation and give power only to a wealthy few The Democratic Republicans believed they would lead to a reduction in farming and cause Americans to rely on foreign goods .

The Democratic Republicans believed they would negatively affect American trade relations with other nations, they felt they would corrupt the nation and give power only to a wealthy few, and they believed they would lead to a reduction in farming and cause Americans to rely on foreign goods.