How does buying up assets lead to price increases in "groceries (96%), gas (93%), dining out (57%), and clothing (42%)"? Are the Koch Brothers hitting up Costco every day?
Obviously it doesn't. In fact, one common long-running justification for why we should helicopter-drop money to ordinary people rather than businesses and banks is precisely that ordinary people will spend it on goods and services whereas the wealthy will not - and it seems like we're seeing the consequences of actually doing this right now.
The trouble is that there's a strong strain of left-wing populism in the US based around a view of the economy that is simple, gives someone convenient to blame (the evil wealthy corporate class sitting on all the wealth like dragons on hoards), and bears almost no resemblance to the way the world really works. Which is why you still get people pushing for wealth redistribution as a solution to this inflation, even though the very argument that was being used to call for it before means that it will make the inflation problem worse.
Gas is up because of the recent pipeline shutdown.
Grocery prices have been rising since the start of the pandemic. Far more people are now accustomed to cooking at home. Anecdotally, I am one of them. I buy at least twice as many groceries as I did pre-pandemic and that is not going to change. Also the pandemic is still in full force internationally, especially in places where the US sources major food imports.
Clothing is up because commerce with the Chinese textile industry was shut down during the pandemic. It will take at least another year before clothing prices are restored.
Notice that the massive spikes in real estate prices are not even mentioned in the article. This is a propaganda piece. It cherrypicks items that poor people depend on in order to promote backlash against redistribution.
So the trillions being delivered to the rich is the source of inflation (per your comment above) because of... other nefarious things the rich people did, and also other events that they didn't do? Did they need those trillions to be incompetent, maybe? Or to reduce support for redistribution (per your comment pre-edit)?
The trouble is that there's a strong strain of left-wing populism in the US based around a view of the economy that is simple, gives someone convenient to blame (the evil wealthy corporate class sitting on all the wealth like dragons on hoards), and bears almost no resemblance to the way the world really works. Which is why you still get people pushing for wealth redistribution as a solution to this inflation, even though the very argument that was being used to call for it before means that it will make the inflation problem worse.