Other thing, Jay Garrick speed force is yellow

He killed is past self… so he should disappear like the Reverse Flash?
Jay was a hero on heart-2 right? They already knew him before this 2 earths things… Zoom would never be a hero.
WTF was that thing about giving zoom his speed?… why?… what?…
It's almost as much non sense as in season one when he went back in time to…

It did for the rest of the season. ..

nobody cares that oliver restarted killing?