All men are created equal.
Perhaps, but there existence on this planet and their cultural experiences change them very quickly. Just because they are created equal doesn’t mean they stay tat way, nor does it mean that a nation has any responsibility whatsoever to import them from the open sewer that THEY have made of their own country.
America does not NEED mass immigration, those days passed by the time of World War 2. Since America has no need of these populations. In fact, it just takes a drive through just about anywhere in Southern California - even Orange County or Gaslight in San Diego - to see what the outcome is when you mass import people without any merit check from Third World countries. Hepatitis and Mass Tent Encampments - it’s the big new thing in So Cal.
America can be picky and choosy - and must be if the culture is to be preserved. It does not need demographic upheaval, there is no condition whatsoever that requires it to take such a risk, as California is proving to anyone who bothers to look.
One has to place that statement of principle in the historical context of the Declaration. At the time, and for almost all of history before, the prevailing political philosophy was that humans were part of a hierarchy, the Great Chain of Being, and that humanity itself was hierarchical. Some men were “Better” than others, by birth. There were sovereigns (kings, emperors, princes ‘by the Grace of God’), nobles, commoners, serfs and slaves. Their status was natural, Divinely ordained, and permanent: “Villeins you are, and villeins you shall remain.”
The Declaration of Independence refuted that philosophy of the Rule by Divine Right in one revolutionary sentence: “We hold these truths to be self-evident: that all men are created equal.” Jefferson and the Continental Congress did not mean that all men were equal per se, but that some men were not born to rule while the rest were born to serve.