According to the US immigration office, there are 55 million foreigners in the country legally with visas in 2025! There are probably 30 million illegal immigrants as well in USA.
Those people with visiting visas are typically limited to stays of no more than 6 months at a time. Some if them are holding a 10-year visas and they usually come and visit for a few weeks at a time, once or twice a year.
The concern is what if someone commits a crime when he is within a period of ten year visa? How does US immigration discover that? 55 million of Visa are a significant impact to our domestic resources, culture and values!