Whenever someone says they aim to make it "easier to build houses", I feel they just mean they'll remove certain standards. Not the "must have this many parking spaces" standards which we can do without, the "do we really need a fire ladder?" standards. And then the house is sold at the same price(+inflation) than before because the cost cut all goes to the builder, not the buyer.
If you assume the building company is exploiting every change in regulation (they do like money after all), small changes do nothing and you readily adopt more extreme views (and if you're racists you blame the people with neither money nor power, but that's expected of them).
It depends where you are, in the UK we have american HOA level regulations on house building, your permission can be denied because of the shade of your roof tiles or because the sheds are using the wrong shape of corrugated roofing sheets. Of course the problem is more that these things are very ill defined and the local planning office gets incredibly petty with the power they're given.
So you'll be interested in California's solution. If the project contains enough low income housing and the city won't approve it the developer can just build it anyways. All the safety standards are still required, they just can't be stopped from building it. And if they build it within a certain distance of a light rail stop they don't have to include parking.
I've never met a person actually making that argument, though. I'm certainly not advocating removing building safety codes, only the NIMBY bullshit like exclusionary zoning that was literally designed to keep people of color far away from white people. Even the opening paragraphs of Wikipedia page for the YIMBY movement say it's primarily in favor of removing things like exclusionary zoning and parking minimums:
The YIMBY movement (short for "yes in my back yard") is a pro-housing movement[1] that focuses on encouraging new housing, opposing density limits (such as single-family zoning), and supporting public transportation. It stands in opposition to NIMBY ("not in my back yard") tendencies, which generally oppose most forms of urban development in order to maintain the status quo.[2][3][4]
As a popular organized movement in the United States, the YIMBY movement began in the San Francisco Bay Area in the 2010s amid a housing affordability crisis and has subsequently become a potent political force in local, state, and national[5][6] politics in the United States.[7][8]
The YIMBY position supports increasing the supply of housing within cities where housing costs have escalated to unaffordable levels.[9] They have also supported infrastructure development projects like improving housing development[10] (especially for affordable housing[11] or trailer parks[12]), high-speed rail lines,[13][4] homeless shelters,[14] day cares,[15] schools, universities and colleges,[16][17] bike lanes, and pedestrian safety infrastructure.[3] YIMBYs often seek rezoning that would allow denser housing to be produced or the repurposing of obsolete buildings, such as shopping malls, into housing.[18][19][20] Cities that have adopted YIMBY policies have seen substantial increase in housing supply and reductions in rent.[21]
The YIMBY movement has supporters across the political spectrum, including left-leaning adherents who believe housing production is a social justice issue, free-market libertarian proponents who think the supply of housing should not be regulated by the government, and environmentalists who believe land use reform will slow down exurban development into natural areas.[22] Some YIMBYs also support efforts to shape growth in the public interest such as transit-oriented development,[23][24] green construction,[25] or expanding the role of public housing. YIMBYs argue cities can be made increasingly affordable and accessible by building more infill housing,[26][27][28]: 1 and that greenhouse gas emissions will be reduced by denser cities.[29]
We're disproving this really fast in California. It turns out developers want to build single family homes. It's more profitable to them than buildings.