Yes, by hogging toilet paper. I hate to be a pessimist, but just look at the track record: when covid started, there were shortages of many things (e.g. for a few weeks in march, canned food and chicken ran out of stock at places). We've also seen the impact manifest in the form of price increases (basmati rice[0], for example)
If we ever see large scale crop failures due to a weather event, it's quite reasonable to expect lockdown of exports of foodstuff, and it's quite reasonable to expect large spikes in consumer spending quickly depleting with the supply chain pipeline like what happened with toilet paper/canned food.
The problem is you can't armchair-engineer sunlight at the scale that humanity's agricultural industry requires, so a large scale volcanic or meteoric event would likely be catastrophic and a lot of people would die.
[0] https://www.thegrocer.co.uk/sourcing/basmati-rice-shortages-...