Trump took a great economy and left it in shambles. Why? He dropped the ball on Covid: Trump got rid of the Pandemic Response Team, purposely didn't promote mask wearing, no contact tracing, repeatedly saying in public that it "would go away soon", encouraging his loyalist governors to reopen (which led to surge after surge). The results? 15% unemployment, highest in the 1st world, and a failing economy. So yes, we blame Trump.
Biden's complete overhaul of the failed COVID policy and Warp Speed is what got vaccines out to the public, hence why we have had a gain of 6.5 million jobs since January. Remember, Trump said the stock market would crash under Biden and unemployment would skyrocket. O for 2, not even close. Just say "Thanks Joe" and move on... BOOM!