Maybe I am assuming a lot of things here but is this your experience with businesses or people in the streets ?

In France we have a totally different approach than Americans for exemple regarding people we don't know. Even between french speakers we will generally not be light chatting with strangers (exacerbated in dense populated areas like Paris/Lyon), as opposed (as I understand) to Americans who can talk to anyone anywhere.

I often wonder if this sentiment of disdain for English speakers is not due to this misunderstanding of our habits.

Quick reminder that we have a military. There won't be a draft any time soon and if there is one, we would have other problems. So unless you are in the army (and if you are, you signed for it) you won't have to "hold the FAMAS"

If a 1 is not a fail, why do you roll at all ? I mean if the DC is 5 and you have +15, your DM should just not make you roll (* you pass automatically). So a 1 should always be a fail.

If your cheese have an omelette then you are right. In all other situations, you are not.