To start, we have to understand that the genocide of Palestine started before the October 7th attacks. Israel's rampant illegal settlements in the Gaza strip may have been the final straw that provoked Hamas to make a move, but Palestinians have been abused, forced into ghettos, and murdered by private citizens for decades. All of this, and nobody in the West ever really batted an eye at the suffering except for a handful of informed leftists.
If Harris had won, the most likely outcome is that the immediate conflict would eventually be paused, just like it paused after the second intifadas. No land would be returned, no settlements removed, but Hamas' forces would be decimated to the point they could not fight back and Israel would return to their quiet slow genocide until the stars align to renew their attack once more.
Now that Trump has won, the most likely outcome is...that the immediate conflict will eventually pause, just like it paused after the second intifadas. Israel isn't an island, if they ramp up their aggression ever further, eventually other parts of the world will push for sanctions on Israel. A Trump win doesn't suddenly give Israel carte blanch to build the gas chambers, they still have to pay lip service to international law. Israel will inflict a grievous wound on Hamas, deep enough that it will take another generation before conflict resumes, and go back to expanding their settlements.
This genocide has been happening since before I was born, and multiple Democrat presidents have had an opportunity to say something or work towards curbing Israeli aggression. They've all vaguely promised to work towards a two-state solution, knowing that the current two states are what they want. If Kamala Harris couldn't even call it a genocide, then she was no different, and it would be foolish to think she would actually take any steps towards meaningfully stopping Israel.