Land usage is not a problem at all, if you do the arithmetic. That you bring this up tells me you're parroting anti-renewable talking points in bad faith rather than presenting reasoned objections.
As for base load, we can estimate the cost of covering for intermittency of renewables to produce synthetic baseload. It ends up cheaper than nuclear. A key part of this in some locations (such as Europe) is to use hydrogen in addition to batteries for storage.
> Plus, we haven’t put as nearly as much time last 30 years coming up with better nuclear devices as we did in renewables.
We've spent much longer than 30 years trying with nuclear. The first nuclear power plant on the grid was in the 1950s. Huge investment was made in civilian nuclear back in the day. If less is being invested now it's because nuclear has demonstrated it's unattractive, not because we didn't give it more than enough chances.
The "oh poor nuclear is just misunderstood" argument is common nuke bro defensive thinking. No, nuclear's problem is $$$. The people with money are negative on nuclear because they see scammers trying to sell them crap all the time (in nuclear's case, via grossly lowballed cost projections), and they've learned to say no.