There are three questions here that have each been answered separately. See the Related Questions below.
There is no such conflict. Abraham and his grandson Israel were never in conflict according to the Bible. There is also no conflict between the patriarch Abraham and the Modern State of Israel.
Zionism is certainly one of the causes of the Israeli-Palestinian Conflict. It is not the only cause of the conflict and is also not the most important cause of the conflict.
Israel is.
Unfortunately, there are more than two conflicts going on. There is an ongoing conflict between Israel and Gaza. In addition, there is a major conflict taking place between Russia and the Ukraine.
The only conflict IN Israel involves the differences of opinion and recommendationamong adherents of the many political parties in the country. This is in markedcontrast to the peace and quiet in all of the neighboring countries that surroundIsrael, where everyone is happy and all political differences have been worked outto the point of common agreement and common goals.
The conflict between Israel and the Palestinians destabilizes the region and results in increased militarization among nations.
The peace treaty between Egypt and Israel, signed in 1979, was a significant event in Middle Eastern history. It was the first peace agreement between an Arab country and Israel, ending decades of hostility and conflict. The treaty paved the way for diplomatic relations between the two countries and set a precedent for future peace negotiations in the region. It also led to Israel's withdrawal from the Sinai Peninsula, which had been a source of tension and conflict between the two nations. Overall, the treaty marked a major step towards peace and stability in the Middle East.
this is a regional conflict
A result of that conflict is the very existence of the State of Israel.
Jews and Muslims in Israel have equal rights and responsibilities with one exception, Muslim Israelis do not have to serve in the Israeli Defense Forces whereas Israeli Jews do. Unfortunately, Israel is not a perfect country and as a result, a number of Muslim communities in Israel are underfunded and under-resourced. Some have compared Jerusalem to Washington DC where the Jewish communities live in relative affluence or as Middle Class and the Muslim communities are much more impoverished. This does create issues in trying to make sure funds are allocated between communities properly. There are also certain tracts of land held in reserve for Jewish settlement in Israel that Muslims cannot purchase or develop in order to keep certain areas of Israel in Jewish hands. Muslims and Liberal Jews are fighting to bring equality to these issues. If the question is referring to the Israeli-Palestinian Conflict (which is beyond the borders of Israel and into the Occupied Palestinian Territories), the causes of the conflict are outlined in the Related Question below: What are the causes of the Israeli-Palestinian Conflict? It is worth noting that not all Israelis are Jews and not all Palestinians are Muslims.
The Israel military occupation of the West Bank.
McDonald's, as a corporation, does not have an official stance on political issues, including the Israeli-Palestinian conflict. However, McDonald's does operate in Israel and has a presence in the country. Any support for Israel would likely come from individual franchise owners or employees, rather than from the corporation as a whole. It's important to distinguish between the actions of individual entities within a larger corporation and the official stance of the corporation itself.