"Your phone isn't safe at the border" is a statement of fact, really, not fear mongering. It is not safe from warrantless searches.
Also, just my phone? What about my laptop? Safe from searches? Pickpockets? Malware?
There's a big difference between raising awareness of issues(ex know your rights - check out xyz.com for more info) vs big brother is, watching; trust no one, followed by a border security queue
If slogans had to be that comprehensive to be allowed, we would be blessedly free of advertising.
"Your phone isn't safe at the border" is on pretty much the same level as "for everything else there's mastercard" on the accuracy<->drama scale. I think your standards are beyond unreasonable here.
Once people get used to that what's next? Since we have your phone open, just go and pop your Gmail credentials in there for us why don't you? Your phone was in your pocket so what else do you have in there? Keys, what do they open? etc...
It's a slippery slope and the reason we have checks and balances.
It's a sad but true reality.
I'm sick of hearing this argument. Either it's a small percentage of travellers or it's necessary to combat those crimes, but you cannot have both. The only way to have both of those is if you already have some probable cause or a reason to search particular individuals, in which case there's no need for it to be warrantless.