Do you separate between person and composer?

I don’t check if a composer’s political, ethical, religious or philosophical believes align with my own. I mean, sometimes I know of course. Take Richard Wagner, by all means a “problematic” personality. Yet the problems are not manifest in his music, which is glorious.
The thin is we’re all flawed, all human, all fallible. You start purging art based on the sins of the artist, you end up with silence. There’d be no movies to watch and no film scores to be performed if everybody in cast and crew and orchestra needed to be sinless.
That doesn’t mean I would accept, support or tolerate everything, certainly not. If someone actively supports a cause that not only goes highly against my own convictions but even opposes them, and that even shows in the art, it’s less likely that person will find my support.
But Bernard Herrmann? He sure was a thorny, spiky personality, but I don’t remember anything he did that would make me appreciate his music less.

The ten commandments is nice, but they could have cut a few.

Yes, I meant Herrmann’s thorny (often rude) personality, but I realize that’s a different thing than having troublesome political or religious convictions.

I think that are really two different things. If someone is just not an easy person like Herrmann I don’t care that much (Goldsmith is said not to be that easy at times, too). There is a saying that you should never meet your idols as you may be disappointed 😉

If I like a work by someone new I certainly read about that composer in general.

Take Richard Wagner, by all means a “problematic” personality. Yet the problems are not manifest in his music, which is glorious.

It seems the Wagner researcher in general have no agreement if or if not. I don’t know his work good enough. I basically can only listen to the instrumental parts which are glorious (as I am not a big fan of opera singing in general)

I would say yes. I separate that mostly.
An other way around example. From everything I know and hear from articles, interviews and so on, I think that Hnas Zimmer is a really nice person. Highly creative and respectable business man who also contributes a lot to the industry and community and his fans. And I would really like to like what he does.
And I mean, he comes from my home country.
But actually, he stands more or less for a movie music that I despise with heart and soul. If you collected all the flaws from all soundtracks that I ever heard, take everything that I find defective, boring and sloppy in film scores and try to distil it into an own musical figure it pretty much is 80 to 90% of his work, at least the parts, that I know.
It breaks my heart. But that’s how it is.
How many films I felt were really pulled down by his music.
And the best I can expect is, that in movie context I find his music somehow ok and not too disturbing.
And I know, that’s more my problem than his.
But that’s how I feel.
Still I think, he is a nice guy and Hollywood is probably a better place with him than without him.

I do enjoy some of his scores, but more 20-30 years ago than now. For example The Rock, The Lion King, The Gladiator (co-composed with Holst and Prokofiev), and The DaVinci Code. Undeniably catchy music. But also annoying.

There was once a video game composer – I don’t name here on purpose – who completely vanished because of some misbehaviour. Still like some of his scores from years ago.

(…) just indirectly support a cause by being hired to score a questionable film.

You could say a bit opportunistic and even thoughtless maybe depending on what it is and perhaps sometimes you don’t know when being hire how a films turns out… At least someone supporting a questionable film because he actually believes in it is technically consequent…