Yes, it would be nice if interest on loans was either reduced or eliminated. But then, who would lend money if they don't get anything out of it? Only kindhearted people trying to help out. Businesses that need to make a profit would stop making loans. However, so many people have been hurt by high rates or ongoing interest collection. If there is interest on a loan, it should be lower and more reasonable.
The morality and ethics of collecting interest on loans may be suspect in some religions, but that does not mean the practice should be legislated. The U.S. clearly separates the church and state, and one religion's belief system cannot be forced on another. Without interest, there would be few to no loans.
You cannot ban interests charges on loans, otherwise lenders would never loan money. Interests is what lenders get paid for loaning (risking) their money to borrowers. Of course borrowers should have to pay something for borrowing money. If society could no longer lend money, our modern economic system would collapse.
This is a case of selective reading/understanding of religious texts. Interest is charged as a fee for a service, in this case the borrowing of sums of money. Usury is charging excessive interest, much like the government and banks during the 1980s when interest rates sometimes reached 15% or more. That being said, if we live in a country where there is separation of church and state, why would it matter if religious texts denounce the practice. Maybe individuals adhering to the religion should reflect on their own financial dealings.