How many seats have to be perfect GTO bots to make an online table non-viable?

I'm sure the technology exists today for bots that can understand how to read the screen, feed the info into a solver, and raise, call, and fold with perfect GTO accuracy. I have no idea how prevalent they are used, though. I have been playing at Ignition and I know some of the players are real humans because there's a lot of limping. Do you expect there are multiple bots at every table, occasionally just one, or do you figure it's fairly rare to run into one?

With how good everyone is at poker these days, even playing well I feel like your margins are very thin to make a profit. Throw in a bot or two on your table and all but the best of the best players are guaranteed to net lose over time.