What are we doing? Come on. Is this who we are now? “ Saturday Night Live ” featured player Jeremy Culhane once again showed up on “Weekend Update” in his spot-on impression of right-wing talker Tucker Carlson — and this time his target was last weekend’s Met Gala. “A night of fashion and fun. Huh. Really. Come on, everybody, let’s all prance around in our $100,000 clown outfits and watch the American empire crumble. What are we doing? Come on,” Culhane-as-Carlson said in opening the segment. When “Weekend Update” anchor Colin Jost noted that Carlson clearly didn’t like the event, “Tucker” sarcastically responded: “Oh no, I loved it. Because when I go to a museum, I don’t want to learn about history. No, I want to look at The Rock in a skirt. Do you smell what the Rock is cooking? Because I do. It’s gender confusion. That’s the rule. That’s the goal now.” Popular on Variety Then, he took on Madonna: “She named herself after the Virgin Mary.…