Of course.
> transfer the migs themselves
Again: how?
Of course.
> transfer the migs themselves
Again: how?
That means Ukrainian MiG-29s crossing into Ukraine from Poland.
If Poland had simply handed over the planes to the Ukrainians in Poland, the result would have been... Ukrainian MiG-29s crossing into Ukraine from Poland.
If Poland had instead handed over the planes to US troops in Poland, without moving them, and the US had then handed them over to the Ukrainians, the result would have been... Ukrainian MiG-29s crossing into Ukraine from Poland.
So you get exactly the same result in all three cases. What Poland doesn't want is Ukrainian MiG-29s crossing into Ukraine from Poland.
> or through Romania
Yes, that's what this is really about.
That doesn't solve the real issue, which is, AGAIN, that Poland does not want those planes crossing into Ukraine from its border. Whether they fly in or roll in is utterly irrelevant.
It's obvious, as already explained:
https://news.ycombinator.com/item?id=30621764
In the unlikely case that further elucidation really is needed: Poland didn't need to move the MiGs in order to hand them over to the US. Moving them to Ramstein makes a difference only if they then enter Ukraine from another country. So that's what Poland was really after.