>>281305409
>Why is Isekai so prevalent?
It is ridiculously easy to produce and editors will surf whatever is the buzz.
It also a good excuse to lower the standards for later productions.

Writing good characters? Just copypaste your public target, use magic to make the fat incel into a slender chad.
Writing good setting? Just make up on the go.
Writing good plot? Just find a funny twist, you don't even have to setup anything.

Just draw plenty of sexy girls and you are set.