It seems like Robert Downey Jr. can take a joke! After Jimmy Kimmel, who hosted the 2024 Oscars on March 10, took a jab at the actor’s past substance abuse struggles, people were less than pleased with the late-night talk show personality. Now, theIron Man star, 59, revealed he’s unbothered by the incident. “I don’t care. I love Jimmy Kimmel,” Downey Jr. told Esquire in an interview published on Monday, April 8. “I think he’s a national treasure.” As OK! previously reported, Kimmel, 56, took aim at Downey Jr. during the event. “Congratulations to [Cillian Murphy’s] costar Robert Downey Jr. Thi…