Offside - you're either offside or you're not. If you're not prepared to accept a linesperson missing one now and then and want VAR to be implemented then you have no grounds for complaint on offsides, IMO. They used to say this on Match of the Day all the time. "He's off," "He's a yard off," "Ooohhh, hmm... just about off, just about Gary," "It's tight but if you're off then you're off." Marginal calls are still marginal, with or without VAR. If you're not prepared to accept a human can or will call it a particular way then the only solution is to get the rulers out and make certain.
I am prepared to accept it.
Given some of the offside decisions that have been given by VAR, I cannot blame officials.
If we conceded one of these marginally offside goals, I'd blame our defenders, not the officials: no way do the defenders know it's offside, and the margins are too small for them to actually make a difference if the player is onside.