Unfortunately for these workers, with the unprecedented spike in unemployment [1] I suspect Instacart will be able to find a lot of desperate people willing to cross the picket line.
Certainly the instacart workers helped me the last two weeks shut in, it's the least we can do.
Also the pay is crap, and you sometimes end up with orders of multiple cases of bottled water that are very difficult & time consuming to wrangle, and you'll get paid the same as if they bought the equivalent dollar amount worth of breakfast cereal. Customers frequently don't tip.
I found Uber & Lyft to be a far, far easier job for probably twice as much pay. Of course, right now I'm doing none of it. Fortunately my S.O. finally found a decent job and is able to work from home.