why is it so hard for people in south America and central America to get a visa to come to the USA???

why is it so hard for someone in south America and central America to get a visa to come to the USA (either for work or education and tourism
its so much easier for someone in Europe Asia or anyplace else to get them! but why is it so hard for Brazilians and Latinos to get them??

Because we have enough here as it is.

Because (statistically) they are less likely to leave when it expires.

You are mistaken. 95% of our visas and immigration laws favor third world countries. They just have too many poor and criminals that their governments want to send here.

With the exception of tourism, the standards are exactly the same. The reason tourist visas (visa waivers) are easy for Europeans is that they generally go HOME when told.

its diffuclte too to us (africans and arabs ), go to europe u r welcomed there .