Not true. We’ve seen LOTS of evolution. We haven’t knowingly seen macro evolution in action, but we haven’t been paying attention very long either. We also don’t have a full and complete catalog of everything living on Earth. We run into “new” things all the time, but lacking that catalog we generally just assume they’re new to us, but they could be new. Meanwhile with some of the preservation projects going on, we’re not only seeing micro evolution, we’re saving it for posterity.
Even microevolution is a lie.
The bacteria always revert back to what they were prior to the mutation.
Are you aware of the researchers who have attempted to replicate microevolution for many years over thousands of generations? They still have nothing.