Ineed with metaphors idioms and similes

It is a metaphor. You can conclude this by first eliminating similes, similes must consist of words that use like or as. You can cross out idioms, Bc it isn't an everyday quote that you see. Like if you take "that was a piece of cake" that would be an idiom. Hope this helps!!

Refute it, showing why it is mistaken—an apparent but not real problem; acknowledge its validity or plausibility, but suggest why on balance it's relatively less important or less likely than what you propose, and thus doesn't overturn it; concede its force and complicate your idea accordingly—restate your thesis in a more exact, qualified, or nuanced way that takes account of the objection, or start a new section in which you consider your topic in light of it. this will work if the counterargument concerns only an aspect of your argument; if it undermines your whole case, you need a new thesis.