Acting is a difficult profession. I wouldn't want to do it. Just learning the skills is difficult enough, and then there are cattle call auditions, the "you're great but the wrong look for the part," the necessity of being stuck with the direction you're given, and often difficult scripts that make you look worse.
If you're a musician, you can always gig on some level; if you're a visual artist, you can create the work on your own terms. Same with a writer. Even a poet (the least popular of all these) can write without having to find a gig. But an actor? Unless you like doing one-person shows with no audience except your mom, man, that's a tough one. Because you need to find someone who'll put you on a stage.
My feeling is that you almost have to be crazy-ambitious to even get noticed.
So I don't bother criticizing the ones who've somehow managed to run that gauntlet. More power to them, as far as I'm concerned!
Sure, some do a better job with certain parts than others, but...just persevering as a working actor is a very, very difficult thing. I'm friends with some actors who have appeared in successful plays and movies, lots of TV, and when they tell me about their lives, it seems like it's all anxiety and "will my agent EVER call me again?"
Plus, as you know from your own gigs, everyone and his brother is a critic!