Haitians are but one country involved in Biden's program.
https://www.cnn.com/2023/01/27/politics/migrant-program-border/index.html
The parole program announced this month builds on a similar effort launched last fall for Venezuelans. Since October, more than 26,000 Venezuelans have been approved to come to the US, according to the data.
Up to 30,000 migrants from Haiti, Venezuela, Nicaragua and Cuba are allowed into the US per month through the program. To qualify, migrants have to have a sponsor in the US and undergo screening and vetting.