Perhaps we just look at historical value differently, which is fine, everyone has different motivations and criteria for collecting
Perhaps you're just yanking my chain to see if this mangy dog barks back...I guess the answer is yes
I'm definitely a generalist collector and shooter. There's some depth to my SKS, Mosin, Mauser, Lee-Enfield and US firearms collections, but I have a wide variety of other firearms. I'm curious about all sorts of firearms: regardless of use in battle, for example, a lot of South American Mausers saw limited or no use, but they are some beautiful firearms; or whether they were on the losing or winning side of a war, like the French or German firearms. I like the German Mauser 1898 lineage (Gew 98, Kar98a, K98k), even though the Germans ultimately lost both WWI and WWII. They obviously kicked butt through '42, but in the end they lost (thankfully). The German Mausers are excellent regardless. I'm more of a Mauser fan than a Mosin fan even though the latter were on the side of the victors. Of course the Soviets lost about 10 million men/women in their victory, and the losing Germans a "mere" 5.5 million. Again, very poor early tactics by the Russians. The Mosins I like the best are the Finnish M39s etc., that again were used by the eventual losers, but I like their look and function, and historically their use by the underdog in the fight appeals to me.
The French firearms are interesting to me from a function standpoint, since they look and operate differently, than many other firearms of the era, but they function well. They're interesting to me from a historical standpoint as well. The French soldiers fought hard and suffered heavy losses, but I think they were doomed by the out-dated and poorly executed strategies of their general staff and politicians, and the superior strategies and novel tactics of their enemies. The French lost a total of 218,000 military personnel in WWII, so I think their firearms were "battle proven". They inflicted heavy losses on their German adversaries in the relatively brief month long Battle of France; 50,000 Germans were killed and 90,000 French soldiers lost their lives. The often used "fired once, dropped once" joke is good for a chuckle but simply not historically accurate. If the French had not ably covered the British evacuation at Dunkirk, the outcome, or at least the timeline, of the War in Europe may have been quite different. I'm not going to argue that the French firearms had widespread use and fought in as many battles as Garands, Mausers, Mosins or Lee-Enfields, because it simply isn't true, I'm just saying that in my opinion they are interesting and worthy of collecting and they proved their utility on the battlefield despite the outcome of those battles