The Romans, and later Empires like having a simple way of treating everyone who is not part of the "correct" part of Christianity as fair game to kill / enslave etc.
Those branches (such as the Cathars) who were more moderate tended to get wiped out by the expansionist xenophobes. So the whole point is to maximise the ability of kingdoms to expand. If every heathen needed individually vetting as to whether they were good people or not it would really slow things down.
The romans fed the Christians and jews to lions. The "Cathars" were from the 12th and 14th century. Rome was long gone. Not sure what your post has to do with the bible or the op.
“Its been said that when human beings stop believing in god they believe in nothing. The truth is much worse, they believe in anything.” Malcolm maggeridge
The simple believes every word: but the prudent man looks well to his going. Proverbs -14.15
The first to present his case seems right,till another comes forward and questions him -Proverbs 18.17
In the beginning God created the heaven and the earth.
Genesis 1.1
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