Would telling my team the opposite of what I want them to do work?

It doesn't matter what I say, nobody ever listens to anything.

I tell them not to fight because it's a 4v5 and they're ahead. Amazing time to engage! I tell them I don't have smite and it's a bad time to get Baron. Well their jungler is respawning in 3 seconds we have time to get this. I tell Lee Sin to upgrade trinket for sweet ward hops. Well that Bloodthirster isn't gonna buy itself.

At this point I feel I need to try telling them the opposite of what to do in order for communication to happen ever. Is there some secret way to get people to actually communicate. At all.