If one house is on fire and you spray water on it to put out the fire, do you feel obligated to spray water on every other house too so that the other houses don't feel discriminated against?

Actually that is what you do to the houses next to the house on fire. So it doesn't spread to other buildings.

If you’re the fire department, acting on the governments behalf? Yes.

Fire departments spray water on not burning houses?

Yes. It is done when they think the neighbouring structure is at risk of catching fire.

That would still be prioritizing structures based on risk. Not just spraying random other houses in town because they feel left out.

In the current political climate, yes.

You could apply the same logic to "Women in X" groups. It's not discrimination as much as it is support.