Here is why you do NOT amend your federal return for unemployment:
Please read this very recent news from the IRS:
https://www.irs.gov/newsroom/irs-to-recalculate-taxes-on-unemployment-benefits-refunds-to-start-in-may
The adjustment is done separately, and refunds will take several weeks (or months) to send out. See this:
IRS to recalculate taxes on unemployment benefits; refunds to start in May | Internal Revenue Service