I like it more because of the better storylines, but I don't only read Japanese manga, because Korean manga have better pictures, for example
It's like that.

Don’t believe in the me that believe in you, don’t believe in the you that believes in me, believe in yourself who believes in you!

I tend to avoid Korean series but that's mostly out of technicalities. Since most of the Korean series I see nowadays are webcomics and it seems remarkably common for them to get licensed I can find myself hooked on a series only to find the rest behind a pay by chapter system (which is not something I'm fond of; I much prefer bulk payments/paying by volume).
I'll sometimes avoid OELs too; there's quite a lot of variety in quality so sometimes I can't be bothered. Mind you it's not so much that translated works are better, it's that there's a filter in that the ones I see are the ones people have gone to the effort of finding and translating.

Sorry if I've done something wrong; I'm not new, just easily confused.

No. I don´t care where my comics come from. That said, most webcomics tend to have poorer production values and less professional writing than those pushed through the traditional editorial system. The panel-by-panel scroll-down style that is clearly made for smartphone reading isn´t the best use of the medium either but good manhwa has been made with that method, no question there. We´ll see where the webcomic medium is in a decade or so.

I also read EU/US comics and am a librarian.
Manga-Masters, My ANN-Lists + Imdb

I definitely don't avoid it. I like Korean and Japanese. But definitely not Chinese 😀 🤢

I read anything that I can get my hands on. I definitely have a sweet spot for early 2000s manhwa (korean graphic novels, not webtoons). I really wish there was more of the traditional prints or just korean comics in the style of western comics, for the sole purpose that when webcomics get printed in paperback/hardback the quality just drops.

I don't know why they all just use the cheapest binding methods!! And don't get me started on the bad spacing and paneling from the migration from online to print!!!

Internet Lurker At Heart

not entirely, but there's some really good ones

I don't avoid non japanese manga. I have read chinese and even korean manga, I think there are some really great non japanese manga out there.

first and foremost. manga is Japanese comics. when the word manga is used its referring to Japanese comics. when we talk about comics from other countries we call them by different names. manhwa, manhua, and so on. so back to the question, "Do you avoid comics that aren't Japanese?" I try not to. I've read my fair share of manhwa. Tho they are generic you'll find some hidden treasures.

Yes

Rokkon Shojo
TeppenMezashiteTondeAruYo
Let justice be done, though the heavens fall

No, I am just as happy to read any other nation's graphic novels as long as they are good. There's one from France called "Freaks' Squeele" that is as good as some of the best that come from Japan. And older DC and Marvel comics can be excellent as well.

I'm a jack of all trades but master of none. Too many jars and not enough hands.

I sure don’t avoid Korean ones because there have been some very great Korean series that I’ve enjoyed.

Unbalanced X unbalance, SStudy, that’s all I can think of in the end though. Maybe there was one or two others

I avoid Chinese media like the plague. Every time I tried it in the past, it seemed like it was from a different planet.

You might be interested in Witch Hunter. Looks Japanese but is Korean, and it's a bit older, but it was a good read.

I'm a jack of all trades but master of none. Too many jars and not enough hands.

In a way, yeah.
I don't really like the style of korean manhwa/webtoons?, especially all the white space and often boring paneling. I'm sure there are great stories that use that style really well (something like the Boxer), but from what I read a lot are really all the same (especially in like fantasy and/or romance genre).