I've heard this advice many times, mostly in shitty memes and as part of /feels/ threads.

I think the problem with it that if you are at that point, you're already feeling utterly hopeless.

Suggesting that someone who's suicidal:

* willingly loses everything in their life

* starts from nothing

* fights their way through the chaos that is building a new life for yourself

* in a strange and unknown place

* with no support at all

is naive and unhelpful.

To me it also feels pretty dismissive, up there with "you should smile more".