Stephen Colbert during Monday's "Late Show." (Scott Kowalchyk/CBS via Getty Images)Stephen Colbert returned to The Late Show on Monday night for the first time since last week's stunning announcement that CBS would be ending the late-night franchise next year."Folks, I'm going to go ahead and say it. Cancel culture has gone too far," Colbert said at the start of his monologue.Colbert thanked everyone who had reached out to him over the weekend, including fellow late-night hosts, many of whom appeared in the audience at the Ed Sullivan Theater in a show of solidarity.