Seeing how JP Yousha has more hands on experience than any of you, the groupthink bashing of her paper is understandable.
Anyone who thinks that mutts never develop health problems needs to have their own heads examined.
BTW: There is no such thing as a "ruined" breed. There is good and bad in everything including dogs (humans too.) The mutt propaganda is a straw man argument.
I know of plenty of mutts who have developed PRA, HD, Cancer and who died from bloat.
Sh!t happens people. Get over it. Want a dog that will live for forever, buy a stuffed animal or an oil painting.