You are absolutely wrong. No Bihari/Bhayya ever imposed their language, culture or style on others. They are from the lower rung of the society and they never had the clout to impose their will on others. If Hindi has spresd in the areas where you have mentioned, it has spread because the people wanted it. Why people wanted it? The reasons may be plenty. Even inspite of your wish Hindi as it is spoken in innumerable ways will go on spreading inspite of your objection. Unfortunately or fortunately the fact is this.Let things take shape the natural way.
