Well, we can start by pointing out that every widely available model is either directly funds or bolsters authoritarians of the worst kind.

Then we can move to the damage it does to your mental abilities.

We can continue to the ongoing effect on society, the damage to the environment, and so on.

And we can finish with extrapolating on the abilities of the models, and the dystopia that having full AGI would be. Especially if that AGI is built by the current leaders.

I think you're aware of the downsides, but you don't want to put down your precious.