Again,
it is still just "opinion"; there are import marks and then there are ugly import marks- each person must decide for their self if such is
a deal killer or deserving of a significant price reduction.
Some pieces are so rare or desireable that an import marking, while not desireable, is a fact of life.
For example a 1914 DWM Artillery or a GL prototype or presentation piece does not become a shooter just because it has an import marking- JMHO.
Common "Nazi" Mauser lugers may become shooters to some if import marked.
Others can have their own opinion, but it does not make it so.