Is it toxic?
To complain to teammates about their afk?
I main Blitz and one of the main strengths is the lvl 1 invade/counter-invade and I constantly have people just run to afk at tower/leash before minions spawn and completely ignore that the game has already started and doesn't actually start when the minions appear.
I know afk at tower for 1 minute at the start of game might seem inconsequential but when I hit blitz pulls over walls in dragon pit and my team isn't there/doesn't respond it makes a difference...
For calling people out on it in the hopes that they see the error of their ways, I get called toxic.