The recent mass shooting in Texas points up again the "assaultive" advantages of certain "military-style" arms. And thus, it brings to mind the "Homeland Defense," or "Militia" rifle." A larger-caliber weapon potentially reduces these traits, while actually enhancing effectiveness in situations more likely to happen for civilian 2A Militia (see below).
Of note now, though, is the recent adoption of the 6.8x51mm round. Being more like a "battle rifle" caliber than it is the 5.56mm, less ammunition is expected to be carried, and more recoil is demonstrated to be felt. In one sense, it's seemingly a move TOWARD the "battle rifle" basis of the HDR, which lends credence to the idea that higher-powered calibers in regular infantry rifles still have military value, and makes the HDR concept (probably in that caliber) more appealing to the 2A community.
Given that it will take a few years to implement the switch to 6.8 (presuming it indeed goes through), Patriots have time to return President Trump to power and institute a large program for low-cost distribution of a civilian HDR in the caliber (per Article 1, Section 8, Clause 16 of the United States Constitution) in conjunction with the military weapon. Indeed, the new rifle chosen lacks the AR-style buffer tube, making it far more amenable to "featureless" configurations and their obvious political advantages. (PERSONAL NOTE: Yours truly would prefer an AR or AK variant in the caliber and magazine.)
The Second Amendment is not about a hobby or personal indulgence, and the libertarian-types who act like it is do nothing but hurt the cause of RKBA. The function of 2A is innately practical--indeed, the MOST practical of the enumerated rights after freedom of personal faith before the Creator and Judge of the Universe.
From 2018, but still makes a point:
It is THAT FUNCTION which must be our priority. The lives of our country, heritage, and people WILL depend on it.
TDF INDEX: Cats, Guns, and National Security: THE DAILY FUDD index. https://catsgunsandnationalsecurity.blogspot.com/2021/03/the-daily-fudd-index.html