VAR is the engame of fans, players, managers and media never accepting decisions and that referees are human. So we end up with the utter hell of VAR.
Referees are the best they have ever been in terms of fitness and constant review of their decisions. The game is 1000 times faster and players way fitter than they were in the past so getting decisions pefect gets harder. TV reviews decision down to the last millimeter and last frame. Refs and assistants get 1 look.
So if VAR is ever taken away and it won't be you just end up back at square one.
I hate VAR personally and would love to bin it but the same old refs are biased, incompetent, better in the old days etc would just start again. Never ending