The USD's status as a reserve currency is directly linked to it's trade deficit with the rest of the world. Because all other entities (individuals, corporations, organizations) want to keep their wealth in USD, there's a strong incentive to sell (goods, services, infrastructure) to the US and obtain USD in return. Conversely, there's a strong disincentive to buy from the US because goods have to be paid for with USD, which means parting with the very currency one is trying to accrue.
One of the most effective ways to ease the trade deficit is to reduce USD's status as a reserve currency.