Considering an entire industry exists to help corporations and individuals avoid paying taxes using "legal innovations", how difficult will it be for this niche

Considering an entire industry exists to help corporations and individuals avoid paying taxes using "legal innovations", how difficult will it be for this niche industry to create a new legal entity that circumvents the H1B changes in the U.S? These entities probably already exist but just aren't widely understood. Are the H1B changes really just going to hurt the little guys?