However, if the chicoms can take out the runways those fancy dancy planes aren’t going anywhere....or landing anywhere.
Runways can be repaired quickly and easily.
BTW, Ukraine’s air force is still operating — they just never had a lot of operational fighters and such to start with, and obviously have had losses. Still, even with all their missiles and such, Russia has not yet been able to establish air supremacy over Ukie held territory or KEEP Ukie air strips out of action.