Oh FFS, how many times does the word "baseload" have to be mentioned before people like you get it?
No matter how many times you say it, it won't change the fact that what we need is not baseload, it's load-following.
the sun doesn't shine at night
But there is wind at night, and meanwhile we use the most power during the day, when the sun is shining.
you can't just rely on batteries, they can't store enough power for more than a few hours unless you have a storage unit the size of a small hill
So we build more storage. For example, EVs, more and more of which are supporting V2G. It's not rocket surgery.
Fusion power might help solve the nuclear waste problem with nuclear power, and it should solve the hazard problem. But it's also not just a few years or a few billion dollars away. If we're talking about where to spend money, then the place to spend it right now is obviously renewables. And one of the ways we can help make that feasible is to force frivolous bullshit like "AI" to make hay while the sun shines — that is, for any large consumers which can delay their power consumption until peak times to do so. Obviously there are industrial processes which cannot reasonably be paused (like making steel, or fruit paste) but there are plenty which can be, and they should.