Earlier quoted context omitted.
If I interpret you correctly, I think we mostly agree, on (at least) the following points: * English is clearly dominant in the US and enjoys a special status both in law and in practice. * However, linguistic pluralism is accommodated to a significant degree in the US, to a greater extent than it is in some other countries. * Whether to designate an official language is more of a cultural/political wedge issue than…
The first two yes, but I disagree that the last one is so much of a political wedge. The fact that English is the de-facto official language, but not actually an official language is the source of much headache. Actually designating several languages as officially supported (English for sure, probably Spanish as well. Maybe others like Mandarin & Cantonese but that would make more sense to delegate to the State level…
Even if we are not talking about impact to an individual from a liberal point of view, this official favoring of languages leads to extinction of smaller languages by means of them not being as useful to future generations as some other mainstream language.