Contrary to Contarini conjectures I offer Islamic opinion of their own faith - and its treatment of others.
You’re not even considered a ‘brother’ of a Muslim
"Question: Does not brotherhood extend to all of mankind because it is established that Aadam was the forefather of everyone?
Response: This is not so. There is no doubt that everyone is from the offspring of Aadam but we do not say, “This is my brother,” when referring to a disbeliever meaning by that within the brotherhood of man. We can only refer to him as brother when there is a relationship by descent or lineage.
fatwa-online.com/fataawa/muslimminorities/0000920_5.htm
They view non-Islamic practices as evil
“…But he does have the right to forbid her to go out of the house, even if she is going to go out to go to church, because she is commanded to obey him. He also has the right to forbid her to commit evil openly in the house, such as setting up statues or ringing bells.”
islamqa.com/index.php?ref=70177&ln=eng
It goes far worse. They’ve practiced massacres/pogroms upon non-Moslems
"When Jews were perceived as having achieved too comfortable a position in Islamic society, anti-Semitism would surface, often with devastating results: On December 30, 1066, Joseph HaNagid, the Jewish vizier of Granada, Spain, was crucified by an Arab mob that proceeded to raze the Jewish quarter of the city and slaughter its 5,000 inhabitants. The riot was incited by Muslim preachers who had angrily objected to what they saw as inordinate Jewish political power.
Similarly, in 1465, Arab mobs in Fez slaughtered thousands of Jews, leaving only 11 alive, after a Jewish deputy vizier treated a Muslim woman in “an offensive manner.” The killings touched off a wave of similar massacres throughout Morocco.(6)
Other mass murders of Jews in Arab lands occurred in Morocco in the 8th century, where whole communities were wiped out by Muslim ruler Idris I; North Africa in the 12th century, where the Almohads either forcibly converted or decimated several communities; Libya in 1785, where Ali Burzi Pasha murdered hundreds of Jews; Algiers, where Jews were massacred in 1805, 1815 and 1830 and Marrakesh, Morocco, where more than 300 hundred Jews were murdered between 1864 and 1880.(7)
Decrees ordering the destruction of synagogues were enacted in Egypt and Syria (1014, 1293-4, 1301-2), Iraq (854-859, 1344) and Yemen (1676). Despite the Koran’s prohibition, Jews were forced to convert to Islam or face death in Yemen (1165 and 1678), Morocco (1275, 1465 and 1790-92) and Baghdad (1333 and 1344).(8)"
jewishvirtuallibrary.org/jsource/anti-semitism/Jews_in_Arab_lands_(gen).html
“In the late 1800’s the Jews continued to suffer the same discriminatory practices as other non-Muslim “infidels” (58) which “in many places throughout Syria and Palestine” meant “oppression, extortion, and violence by both the local authorities and the Muslim population.” (59) [p. 180]”
quoting Joan Peters book “From Time Immemorial–The Origins Of The Arab-Jewish Conflict Over Palestine (New York: Harper & Row, 1984.)” at
rachelstomb.org/dhimmi.html