The US is one nation that many have always dreamt of migrating to due to the numerous opportunities in terms job opportunities, human rights, healthcare, education etc, but recently the US and most of these western nations are beginning to engage legislations/policies that tends to make it more difficult for immigrants who intend to go to these countries whether legally or not from accessing visas that would enable them move over there, what do you think may be the reasons fort this?

The US is one nation that many have always dreamt of migrating to due to the numerous opportunities in terms job opportunities, human rights, healthcare, education etc, but recently the US and most of these western nations are beginning to engage legislations/policies that tends to make it more difficult for immigrants who intend to go to these countries whether legally or not from accessing visas that would enable move over there, what do you think may be the reasons fort this?