The Supreme Court believes that overcrowding in prisons is cruel and unusual and this violates their human rights despite being prisoners. Therefore, the federal government exercises the standards in prison population. So how the Supreme Court usually rule in cases regarding this matter is that it upholds the 8th Amendment.
<span>Assuming that this is referring to the same cartoon that was posted before with this question, its purpose is to "</span>support nativist anti-immigration sentiment" since it paints immigrants in a bad light.