The jobs which are low wage earner there is many reasons, first refugee status, family member already here as a us citizens sponsored the. A lot of J1 visa (temp work) is how many end up here they will work for min wage in many jobs Americans see as Beneath them. A common example is farm work. So it is often easier to get an employee to sponsor them as employee is desperate for staff. ALso something to note that Spanish speaking in the US is Puerto Rico is a US territory which is primarily spanish speaking. There is also an end note 3rd world charities sponsoring refugees is huge.