@cannarali I get what you mean, and I agree up to a point, but think about it.
How many methods do you know to Isekai?
One: reincarnation/rebirth.
Two: truck-kun
Both of these may include a god/(useless) godess.
Three: summon.
Generally by a king, sometimes god.
Considering summon is LITERALLY kidnapping, doesn't it actually make sense for the king to be a bad guy?
I mean, sure, you can write a story where a character rapes and murders innocent civilians and still try to portray them as a good person, but...