What we are dealing with are Aspirations and hashkapha
not people’s frailties
There many non Yiddish speakers who are exemplary jews.In fact pound for pound probably the non Yiddish speakers may have a better record than do Yiddish speakers.
No one is bad or evil simply because they lack Yiddish in their repertoire
It’s as personal only as much as you choose to make it so
Having said all that ,there are many here with a proven track record of agendae which belies that their objectivity for this and for more important topics than Yiddish