Why are you blaming Nancy Pelosi for the child separation policies. What about the president and his cabinet who implemented them ?
To expand on this. Yes Trump had the family separation implemented, but he could not have done it if they had been no law already passed by Congress specifically allowing it. The executive branches job is to execute or implement the laws that Congress writes.
The family separation was a side effect of Trump implementing Congress’ law requiring that the US prosecute illegal immigrants for illegal border crossings and by law when you arrest parents, you cannot arrest their children too. Therefore the families are separated and the children put into the US foster care system.
These are all laws written and passed by Congress. Nancy Pelosi is the one person in charge of changing US laws. And what does she do? Not a damn thing. She even voted against emergency funding to better house the refugees at the US Mexico border.