A letter in which a grandfather denounces his daughter’s decision to disown her son after he came out as gay has gone viral after being posted online.

The letter was posted on the Facebook page of pro-gay clothing brand FCKH8 on Tuesday (October 1st), and has since accumulated over 10,000 ‘likes’ on the site.

In the letter, the unnamed grandfather tells his daughter Christine that the only “shame” in the family is her decision to kick her son out of home after he came out as gay.

Although the post remains unverified, FCKH8 says that the letter is real and that they have contacted the family about the possibility of speaking out publicly.

Read the astonishing letter in full below:

Dear Christine:

I’m disappointed in you as a daughter. You’re correct that we have a “shame in the family”, but mistaken about what it is.

Kicking Chad out of your home simply because he told you he was gay is the real “abomination” here. A parent disowning her child is what goes “against nature”.

The only intelligent thing I heard you saying in all this was that “you didn’t raise your son to be gay”. Of course you didn’t. He was born this way and didn’t chase it any more than he being left-handed.

You however, have made a choice of being hurtful, narrow-minded and backward. So, while we are in the business of disowning our children, I think I’ll take this moment to say goodbye to you. I now have a fabulous (as the gay put it) grandson to raise, and I don’t have time for heart-less B-word of a daughter.

If you find your heart, give us a call.

– Dad