People have been saying the same for the last 30 years, it's never been true. If you believe it's better to go all in on metals that's a huge mistake.
I am not a property investor, I count my house equity as part of my net worth which is where I got the 60%. I tend to agree that those who have BTL with high leverage are going to be in for a huge shock. However in my case the house I purchased has been the best financial decision I've made. I have a £500/month mortgage, the price to rent the same house next door is now £1250/month, it was around £850/month pre covid. While a house is not technically a asset I count is as one in my case as I have a much cheaper living cost and I'm building up equity. I don't make a return like an asset but I make a substantial saving vs renting the same house.
Yes I believe the majority of business will proper as they always have. Those that fail will be replaced by new businesses, some of the best businesses were created during recessions.
The question is if you believe it's going to be a disaster for businesses then surely silver is going to see a huge decrease in demand? Not to mention both metals prices are manipulated anyway. Now I've reached my insurance goal of metals I'd rather hold the rest of my wealth in stocks (indexes) and work to pay off my mortgage.