Having a 212(a)(6)(i) denial, which is related to fraud or misrepresentation in obtaining an immigration benefit, is a severe issue because it results in a permanent ban from entering the United States. This can occur in various situations, such as visa applications, petitions, or misrepresentation at the airport, involving both written and oral misrepresentations.
The problem lies in the fact that this ban is permanent, and obtaining a waiver is complex and challenging. The availability of waivers is limited, making these cases extremely difficult to resolve once you're caught in a 212(a)(6)(i) situation.