Aquinas is not saying we end up as God,you’re confused
MWD-””He is NOT described in Scripture as “the end of all thing”.””
Perhaps you should read Revelation 22:13
“I am Alpha and Omega, the first and the last, the beginning and the end”
Rev 22:13 does not mean that all creatures end in Christ Jesus. He is before all things, He is complete - we are not. He is not a galactic funnel into which birds, flowers, and people end up.
He is Supreme.