why is the red colour of periods only impure!!!!!!!????

 Red is the color of love,

On every valentine's day they plead.

And the same red color makes me impure,
Just because i bleed.

Working for 24 hours,
Rest is what i need.
Impure is the word for me,
Just because i bleed.

The one who is addicted,
Doing drugs,doing weed.
He is also pure but,not me,
Just because i bleed.

With a knife in hand,
Murderers also feed.
Sharp red marks are acceptable but,not me,
Just because i bleed.

The red stains on the bedsheet after marriage,
'Oh,she is virgin' everyone agreed.
The same red stains werenot accepted earlier,
Just because i bleed.
Rapist with the same blood in his hands,
Entering the temple indeed.
"You can pray from outside',they say,
Just because i bleed.

As you stop me from living,
Dear society,change yourself with some speed. Bleeding is as common as breathing,
So what if i bleed?