"What's falsifiable about evolution?"
Nothing. It's a historical science that starts with a fact (life came into existence) and throws hypotheses out until there is a "smoking gun" that makes one hypothesis the accepted one. Falsifiability is limited to experimental sciences.
The problem with evolution is that "smoking guns" are hard to come by since these are living creatures, and there's an aversion to attributing anything to the supernatural in science.
So it can never be proven or disproven but it is science? LOL
Evolution makes predictions about what type of fossils will be found in different layers. They then look in those layers. If they found a fossilized house cat (or anything like that) among the dinosaurs in undisturbed rock evolution would be disproven.
Further finding anything that truly was 'irreducibly complex' would also disprove evolution. Note for something to be 'irreducibly complex' we have to understand it. Because we don't understand something (yet) doesn't make it 'irreducibly complex'.
Now it's your turn. What would falsify ID? What would falsify YEC?