"I have been querying people all weekend about their experience returning Amazon goods at Kohl's - a new initiative that seems quite popular - and shoppers seem to enjoy the 25% off coupon Kohl's gives them - but it almost seems like the final Trojan Horse wheeled into the department store," he wrote.
"Amazon is not the fault of Macy's or Kohl's or Nordstrom (JWN) - Get Report or any other store, but it is, in the end, the single biggest predator in the Valley. The prices are too low, the convenience, too high, to beat Amazon on a regular basis unless you do something so special that it can draw you to the store, turn the brick and mortar into an asset," wrote Cramer in his Real Money column on Monday morning.
Year-to-date, Kohl's is down around 26%.
Watch the video above for Cramer's full take on Kohl's.
Watch more from Cramer today
Full Replay: Jim Cramer on Kohl's and Macy's and the Trade War