One at a time:
Inflation
Trump is just as responsible for inflation as Biden, perhaps even more so. Some degree of inflation has been inevitable for quite some time.... You probably think Trump was fiscally responsible, don't you?
Supply Shortages
Biden is not to blame for supply shortages. Everyone agrees that the COVID pandemic and chaotic changes in consumer spending habits have been factors. I would also add that the specific policies which led to our supply constraints are lax anti-trust, de-regulation of basic infrastructure industries like shipping, railroads, trucking and the lack of investment in domestic production and a trade policy emphasizing finance over manufacturing. This problem has been 30 years in the making. Blaming Biden also shows your ignorance of the issue.
Afghan Troop Withdrawal
The fact is, both Trump and Biden were eager to withdraw troops from Afghanistan. In February 2020, Trump negotiated a withdrawal agreement with the Taliban that excluded the Afghan government, freed 5,000 imprisoned Taliban soldiers and set a certain date of May 1, 2021 for the final withdrawal. The Trump administration kept to this pact, reducing U.S. troop levels from about 13,000 to 2,500, even though the Taliban continued to attack Afghan government forces, and welcomed al-Qaeda terrorists into the Taliban leadership. Biden delayed the May 1st deadline, that he had inherited.
You probably were ignorant of all of this weren't you? There is NOTHING which indicates that the Trump administration would have handled the Afghan withdrawal any better.
Open Borders
Biden does not have an open border policy either. That is a lazy narrative. In reality, over 70% of people caught crossing the border into the United States since Biden took office have been immediately expelled after their arrests. There has obviously been a surge in migrants at the border, but Biden's policy has been the same as Trump's.