Yet the international community must also be aware of the importance of promoting peace in the country so Christians can remain in their homes, he insisted.
"The tragedy is that the number of Christians in the Middle East has dwindled," Bishop Angaelos said, "because every other country where there was a significant Christian presence has been devastated by war or conflict and they have moved."
He estimated Egypt's Christian minority to make up around 80 percent of the overall Middle Eastern Christian population.
What can be done to help the embattled Coptic Christians?
"First and foremost prayer," the bishop explained. However, advocacy is also vital in a time when ongoing conflicts can be supplanted in the news cycle by even more terrible and explosive tragedies.
"Just because it's not the top item in your newsfeed doesn't mean it's [not] still happening," he maintained.
It is important "to keep the issue alive and to keep it in peoples' minds and in peoples' hearts, and to keep people aware that it continues to be a struggle," he said, "because they do feel very voiceless, and they sometimes feel very unsupported. And it's up to us, I think, to make sure that they don't feel that."
The U.S. must also pressure Egypt to ensure that Christians enjoy equal rights as the rest of the citizenry, he said.
International partners could accomplish a great deal of good through foreign investment and supporting tourism in the country, he explained. What is most needed is "not handouts," he insisted, "but an investment in the country and in the people of the country."
"This isn't just about governments. This is about individuals feeling vulnerable economically, and so therefore the weaker elements also become vulnerable to radicalization," he said.
The poor and the unemployed are more vulnerable to radicalization, he explained. "And we find that it is poor, unassuming people who are manipulated into these situations and unable to push back enough, unable to withstand the pressure. And they become prey."
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"What we see in the Christian community, of course, is that they suffer. The Christian communities suffer because those who work in private industry or in tourist industry are suffering."