Bert and Ernie are one of the last remaining relics of a time when gay men, in an attempt to avoid the stigma associated with homosexuality (there used to be a stigma), pretended to be straight while secretly carrying on with men at night, sometimes in an alley—especially guys who had been to prison, who no longer found the grip of a woman's vagine to be tight enough.
When Sesame Street announced yesterday that Bert and Ernie have no sexual orientation, after some gay guy who used to write for the show let slip that they're an item, they were merely covering for the puppets, lest Oscar the Grouch finds out and starts calling them the other f-word.
You can tell their explanation—that puppets don't even have a sexual orientation—was some ol' bullshit because other puppets seem to have a sexual orientation. Miss Piggy, for example, was always throwing herself at Kermit the Frog. Kermit wasn't interested, because back when the Muppets came out, it wasn't considered socially acceptable for a guy (or a frog) to get with a fat woman during the day, when his friends might be watching.
As Dave Chappelle once pointed out, there's a lot of things about Sesame Street that wouldn't fly in 2018. The Count, for example, was a straight up pimp, complete with a cape. Snuffleupagus was on heroin. As a matter of fact, when Sesame Street came out on DVD, years ago, it had a disclaimer saying it was inappropriate for children.