They’re parading straight into custody.

Anti-Israel protesters tried to ruin the Macy’s Thanksgiving Day Parade for the second year running Thursday, with cops quickly swarming in to gobble up roughly 25 arrests.

The firebrands entered the parade route at West 55th Street and Fifth Avenue, stopping the Ronald McDonald balloon in its tracks around 9:25 a.m., police said — and drawing loud jeers from parade-goers screaming at the killjoys to move.

Photos showed protesters sitting in the parade’s path, with some unfurling a large banner that read: “Don’t celebrate genocide!”