@Toloran
When you deal with isekai, you have a few different subsets they fall into
1) the worlds are deeply connected, making travel somewhat possible but impractical
2) a beacon is in the worlds that allows travel between
3) we know how to send you back, but you are literally our last hope
4) its 100% random and going into infinite universes, the chance of ever going home is next to nill with no real way to do it.
5) transferring worlds is encroaching on gods power making moving between worlds near if not impossible.
6) hard block the possibility by god due to various reasons.
then you are for the most part put in that world for a reason, given power, ect ect. most people will go their entire lives without ever finding a reason to be there, sure they may have a job, but most people its just a way to live not something they love, many people have loved ones, but since recorded history people have left everything behind in hopes of better lives. you know our current lives "to late to explore the world to early to explore the stars", if I want to I can see almost anywhere in the world, there is no adventure, there is no thrill of seeing the unknown. whats left of the ocean we cant explore without submarines and even then can't without remote control subs
isekai almost universally puts people in a fantastic position to be whatever they want and fulfill dreams they may never have thought they could or gave up on.
Personally, if I was dumped in an isekai world where I was given a power, I would use it to the best of my ability to have fun, if I was put in a world of magic I would learn magic, if I was put in a crap circumstance I would exploit it to get the best for me. It would suck not having family and friends, but I don't have a family I created and likely never will, that's about the only situation where I would want to go back home besides just being dumped in a murder planet... which one isekai more or less has earth be, which is a very interesting concept you see crop up every now and then, granted more in science fiction then fantasy, that humanity IS the monster other races are scared of, where we thrived on a planet that at every step tries to kill us (look at australia) where I believe we have just enough gravity to make space travel almost impossible. sadly this concept is rarely ever explored.