San Francisco (CNN Business) Mark Zuckerberg can't think of a single reason to break up Facebook (FB), even as lawmakers call to dismantle or regulate major US tech platforms.

In a conversation Wednesday at the Aspen Ideas Festival , Zuckerberg said being big is actually a benefit in the fight to prevent the spread of misinformation and deal with election interference.

"The question that I think we have to grapple with is that breaking up these companies wouldn't make any of those problems better," Zuckerberg said in a conversation with Harvard law professor Cass Sunstein. "The amount that we're investing in safety and security is greater than the whole revenue of our company was earlier this decade when we went public, so it just would not have been possible to do the things we're doing at a smaller scale."

Not everyone sees it that way.

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