The big four tech CEOs testifying at Monday's antitrust hearing will each offer up a key point to defend their firms and deflect lawmakers' wrath.

Why it matters: No corporate leader wants to see their industry heavily regulated or their company broken up. Monday's hearing gives Mark Zuckerberg, Tim Cook, Jeff Bezos and Sundar Pichai a big platform to try to prevent that from happening.

Facebook CEO Mark Zuckerberg: Congress should pass better laws. Let's work together and do that!

Google CEO Sundar Pichai: We won search by doing it well why punish us for that?

Amazon CEO Jeff Bezos: We're big because we've always given users what they want fast delivery, wide selection and good prices.

Apple CEO Tim Cook: Our App Store creates opportunity for countless developers and Google's Android controls more of the smartphone market, anyway.

One wild card: China. All four companies have loudly or quietly warned that the U.S. shouldn't over-regulate its big tech firms because the nation needs them to be big and strong to counter threats from China.

Between the lines: Many of the loudest and most potent lines of attack on tech like the idea, promoted by President Trump and other Republicans, that it's stifling conservatives can be countered with facts, but they're too politically useful to simply be dropped.

The bottom line: The CEOs will get a chance Monday to rebut criticisms, argue that they're a net good for the nation, and tell lawmakers directly that antitrust enforcement is the wrong remedy for their ills.

Read more:

The one big thing each tech CEO will tell Congress - Axios