Grazing animals contribute to the nutritional cycle
This is an opinion question, but I believe that it is possible to seize political control over a country without oppressing the country's people. However, history has shown otherwise (Nazi Germany, British Empire) but we can use past mistakes to improve our future world.
Answer:
Personal Liberty laws were passed by northern state governments to counteract the provisions of the Fugitive Slave Acts and to protect escaped slaves and free blacks settled in the North. It was meant to protect African-Americans from being kidnapped and captured as fugitive slaves.