Red Rock Canyon, even when framed by quotation marks, isn't a part of our National Park System. Neither is it administered by the National Park Service (NPS). It's administered as a National Conservation Area by the Bureau of Land Management (BLM). There's a big difference in NPS and BLM management philosophies -- even on parts of the public domain (BLM) which have been formally designated as national conservation areas or (I think erroneously) as national monuments. NPS policy is more protective of resource values and the quality of the visitor experience, and management is therefore more restrictive. BLM has a more hands-off approach to visitor activities and also allows for extractive uses like grazing, logging, mining, and drilling for oil and gas. There's room in the world for both management philosophies, even in contiguous areas.
I live within a mile of Colorado National Monument (NPS) and McInnis Canyons National Conservation Area (BLM). Both offer superlative western scenery. Beyond that, if you want to see wildlife, visit the national monument. If you want to see people walking their dogs and cows grazing, or if you want a place to fly your drone, visit the national conservation area.