Ahh yes, another bitcoin fanatic using reductio ad absurdum to support his point. People won't intentionally stop buying food, no, but as is actually evidenced by historic trends people do cut back on luxuries.
And guess what? Luxuries are also produced by companies that employ people, so a drop in demand means they start cutting back on the employees they need, the hours the employ or the pay the offer. That in turn drives people to cut back on essentials due to sheer necessity.
I absolutely support poor people which Is why I don't support ponzi schemes that offer people the ability to get rich by doing nothing which inevitably lead to the majority of poorer people losing out. When bitcoin crashed, who do you think had to sell their stake? People who were sitting on piles of excess money, or poor people who had invested but couldn't keep the cash locked in for several years?
Seriously kid, you need to grow up and embrace the real world.