This is basic economics and can't be escaped by wishing it away. I will say the Dems didn't really do anything to address the issue, and Congress was mostly helpless on the issue despite a clear need, though that is typical of them these days.
Sam, you're off on this one. While a lack of immigration might lead to wage growth, which might lead to inflation, I don't think that's really the case here. Especially with the very high immigration that we've seen post-Trump.
But the inflation we see is a global phenomenon, not a domestic one. If it was caused by a lack of US immigration, wouldn't all those countries who were flush with workers see their prices be stable? After all, their people weren't trying to immigrate here, right?
The truth (to my basic economics mind) is that massive fiscal stimulus caused a situation where a lot of new dollars were chasing an equivalent--or due to supply chain issues, a smaller--basket of goods and services. It's monetarily-driven.
However, unlike HB I'm not just going to say this is a Biden or Democrat problem. Trump was already starting fiscal stimulus while still in office--likely to try to get people to vote for him. GWB was starting fiscal stimulus when the Great Recession hit, as well as a few times before that.
So I don't think it's partisan. It's what governments do when the excrement impacts the air circulation device.