Wishful thinking. An actor in an old B&W "Avengers" episode was repeatedly openly flirting with the camera, nothing to do with his character or the plot. I looked him up, and he actually came out as gay much later in life. Another one that caught my eye married into a prominent family, then came out as trans in his final years. Sometimes the character is written as a deliberate tease (The Middle, Boston Public, etc). People see what they want to see, or what the director or writer wants them to see, or what the actor secretly hopes they'll see. They call it entertainment. More straight characters? 99% of them are straight. For 50-60 years, it was 100%. Lighten up.