No, Donald Trump was President, not a god.
And no, Republicans did not come up with MMT.
If Biden was unable to enact any of his policies then why has the baseline gone from $4.4 trillion and 21% of GDP in 2019 to project at $6.2 trillion and 24.5% of GDP and increasing from 2023 forward? (The deficit is projected to shrink, but remain and continue increasing debt as has been done since Coolidge, because they project massive tax increases on the middle class.) Because Biden and the Democrats took the 2020-2021 COVID baseline and locked in a large chunk of it as ongoing spending, Manchin and Sinema didn't block everything they just blocked it from increasing as much as Biden and the Democrats wanted which would have been like $8 trillion or some shit. It was all over the news. Biden isn't to blame for inflation but you can't point to the spending as causing it when you wanted to increase spending even more.