If such a pill became available tomorrow, I would gladly take it. At my age, having been married for nearly 40 years, and with grown children and young grandchildren, I would not consider changing from the "straight" life I have lived. Anything that makes it easier would be welcome.
If such a pill had been available 50+ years ago, I would definitely have taken it. I doubt it was easy for anyone growing up in the 1950s, regardless of sexual orientation. Gays had no choice but to stay in the closet. By the time I graduated from high school, I knew of only one openly gay guy. By the time I graduated from college, that number had doubled. A pill would have been an easy way to solve a lot of problems and eliminate a lot of uncertainty.