The border has been in a 'crisis' for a very long time!!!!!
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A gross understatement, for sure.
Consider the critical relevance of history, traveling back some 400 years.
In 1648 the Thirty Years War ended by the Vatican promoting the Treaty of Westphalia.
Its most critical impact was in promoting the concept of Sovereign Right; whereby only
the rightful citizens of the nation/state having clearly defined borders, are the only ones
who decide who can/cannot enter their nation/state.
In our time, this has been long forgotten as our sanctimonious political assholery insists
they are the deciders and the results are plain to see.