-snip- "used": 0.00021342
"
used" doesn't mean that those are spent, it only means (
in layman terms) that you've received bitcoins through an addresses, spent it and then received coins through that address again.
In case you unintentionally enabled the flag, you can disable it with:
bitcoin-cli setwalletflag "avoid_reuse" false
On a side note, accumulating more UTXOs with small amounts like those could end up causing you to pay high txn fee if you need to spend hundreds of them in one transaction.
If those are mining pool payments, I'd consider setting a higher minimum payment amount.