Its not an argument really,

You need both;

1 - to respect other languages and peoples right to speak in them no metter where they live.

2 - to foster a healthy approach to ensuring people can communicate in the culture they live in. For example in the case of a bangladeshi man with a heart problem who might be trying to tell the paramedic that his pills are in his inside pocket but can't and so dies.

Practicality and common sense can sometimes be confused for a lack of respect or racism.