Ottoman Empire was the sickle of the Christian world in the past

I wonder what would have happened if Constantinople had not been conquered? What if the Ottoman Empire did not expand its borders as much as it did? What would have happened if they had not taken the slaves from Georgia and the Balkans? What would have happened if the Christians had not been displaced from the Middle East? What if the United States had not contributed to the collapse of the Ottoman Empire? What if the Ottoman Empire continued in Anatolia and did not strengthen the Turkish nation and state as much as it did? For example, there is Hamas in Gaza, Hezbollah in Lebanon, Houthis in Yemen. So would there have been a Palestinian Ottoman state? Honestly, it hurts me to think that they destroyed the cultural heritage by forcibly expelling the Christians from these lands.