This is why I was never a fan of the alternate flags for Cops (blue stripe) or Firemen (red stripe).
The whole idea of the flag is to UNITE behind it. 1 country, 1 common people.
I can understand the sentiment behind appreciating Firemen, Police, but then you're creating divisions. And where does it end? They have them for the military (green stripe), paramedics (purple?) and dispatchers, and...... It doesn't end until every little demographic has one (as we see). And people stop using the normal US flag.
Now the idea of the flag means nothing.
Now the idea of a Nation means nothing.
In essence, the US means nothing.