That figure comes from a post on a right wing site called Yellowbullet . It states that 30,000,000 people or 10% of the population of the US are illegal. It gives no links, source, study, etc to document its statement.
Pew Research, probably the most respected research institute in the US says:
"The unauthorized immigrant population in the United States grew to 11.0 million in 2022, according to new Pew Research Center estimates based on the 2022 American Community Survey, the most recent year available. The increase from 10.5 million in 2021 reversed a long-term downward trend from 2007 to 2019. This is the first sustained increase in the unauthorized immigrant population since the period from 2005 to 2007.
However, the number of unauthorized immigrants living in the U.S. in 2022 was still below the peak of 12.2 million in 2007."
The unauthorized immigrant population in the U.S. grew to 11 million in 2022, but remained below the peak of 12.2 million in 2007.
www.pewresearch.org
The US population is about 325,000,000. Pew Research says there are 11,000,000 illegal people here. That's about 3%.