We're not short on space here in the U.S., that argument is a red herring.
You dismiss that point too quickly and conveniently for States that are densely populated or where there is real and legitimate public opposition and conflicts with existing land use. You gloss over "red herrings" for convenience. So trivial that it doesn't matter. That's a mistake.
Right now, the Los Angeles Department of Water and Power is considering a $3b plan to use the Hoover Dam for pumped storage. From a strict engineering perspective it makes sense. But I'm not sure that the good people of Nevada, Arizona, Utah, New Mexico, Colorado and Wyoming will feel the same way. In fact - municipalities downstream of the dam in Nevada and Arizona are already pushing back hard against the idea. It seems that disrupted water flows and miles of pipelines and pumping stations just to power Los Angeles strikes some folks the wrong way.
The State of New York has an admirable goal of 50% renewable generation by 2030. If you look strictly at the numbers this would require about 1% of the State's land area. But State planners are running into some real and formidable conflict issues: more than half of the State is forest and woodland - much of it local, State, or Federally designated and protected; and farmland accounts for 25% of the New York's total land area.
My point being is that there is far less flexibility and expediency for renewable projects than you admit and for which you so quickly gloss over. A common saying is that for renewable electricity, the site "chooses" the project, rather than the other way around. Unfortunately the best sun or wind resource locations are not necessarily located near demand centers or energy transmission infrastructure.
Generally speaking, the public is in favor of renewable energy. Just not in their backyards and not at the expense of the ecosystem. Positive public perceptions turn negative in a hurry when farming communities are negatively impacted or even when they hate the aesthetics of a project. Some farmers will welcome a monthly check in exchange for a wind turbine being sited on their land, while others are going to hate the idea of 35 story high wind turbines being situated near their land. In Iowa and Kansas, wind projects have been stopped and dismantled over public opposition to the permitting process. San Bernardino County in California (the largest County in the US by area) passed a rather restrictive law that prohibits utility-oriented renewable energy projects - even in unincorporated rural zones. A 500 MW solar farm in Virginia is being opposed by locals on the basis of reduced property values and a ruined aesthetic - they've organized and hired attorneys.
And political attitudes are not really polarized - Republican States like Texas, Oklahoma, and North Carolina are leaders in renewable energy.
You also are avoiding the topic of transmission lines. States hold the power of eminent domain for transmission lines, and States require approvals from local jurisdictions. Some States have laws that are very restrictive for approving power line projects that transfer power outside the State - particularly in the NorthEast.
The US has leased offshore land on the East Coast for wind development. But projects off of Nantucket Sound and Martha's Vineyard were fiercely opposed and defeated by wealthy homeowners. Proposed sites in other areas are smack dab in the middle of the best commercial fishing grounds on the East Coast.
You just can't shrug off the local challenges of siting a project as an afterthought. The locals who aren't getting substantial monthly checks from a project or utility tend to resist the idea of 2000 acres of solar panels or a farm of 35 story high wind turbines in their communities.