In the UK non married cohabiting partners have the same rights as married, so long as both are alive.

When one partner dies, however, the other partner gets nothing unless there is a will leaving property to him/her.

Absent the will, the relatives of the deceased can move in and grab the lot.

I worked alongside a woman who lost everything after twenty seven years of unmarried partnership.

All irrelevant to the argument, of course, as they could have married and chose not to. Hardly the same as being prevented by discriminatory law.

Don T.