The least US could do is to - Get rid of country based quotas for employment based GC immigration, Provide instant GCs for immigrations who get advanced degrees in STEM from top institutes in US
I know a ton of entrepreneurial Indian, Chinese immigrants with advanced degrees (MS/PhDs) from MIT, Stanford, UW etc who are sick and tired of waiting years for their GC (average of 5-7 years wait), so they are not tied to the fate of the employer for their stay in US. Imagine, freeing them for these visa shackles, so they are free to pursue their own ventures, without have to worry about getting kicked out of this country