Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society against the onslaught of the intolerant, then the tolerant will be destroyed, and tolerance with them.
Ah, my bad. So it’s possible for Greeks to have travelled All the way to Ethiopia in ancient times and have populations that survived to this day, but not the other way around? Interesting way of thinking.
Recommended read if you like philosophy: https://en.wikipedia.org/wiki/Paradox_of_tolerance