Ezreal jng question

Ez doesn't need Red to gank.

He could flash ignite support top with a 2-1-2 and roam the entire game and still do good.

depends, if you know you can just invade his in a vice versa kinda way, also depends on clear speed, im not the best person to answer this, but probably a tiny bit over a little

If i see a concerted effort of the enemy team to invade our jungle, i'll just go steal their stuff. They took my red? Well that means their red is free. They just wasted a lot of effort for no return value. There's little point in trying to fight over a buff. You are basically fighting over a single camp while you could steal 2 or 3 of the enemy's camp.