About the homosexuality: Around page 566 of my copy of Extraordinary Popular Delusions and the Madness of Crowds (1841), Chuck Mackay goes into some detail about James I's being -- ahem -- "addicted to the most abominable of all offences" in the person of a young Scotsman named Robert Kerr. Everybody in the episode comes to a bad end, mostly by poisoning each other.

Be the evidence compelling or no, people have certainly been suspecting it since at least as far back as 1841, and Mackay claims that it was widely rumored in James I's time already.

I don't recall Mackay saying anything about James I being a misogynist, and I can't find anything on skimming through at the moment. Mackay was writing in 1841, though, a time when attitudes about women were very different than they are now. I'm not sure that what we call misogyny would have registered on Mackay as anything in particular. Reification, anyone?

Again according to Mackay, James I was also a staunch opponent of witchcraft.