'' Í think that...'' or ''I believe that'' is not an valid argument.
Valid argument is : ''the assertion or argument of my opponent
is not true''. The formula is ''If P then p&q''. That is if the premise
or assertion is true than derivation (deduction) p& q are also
true. But ''If P is not true than neither are p&q''.
We don't need to refer to someone psychology . We can simply
refer to statements made by our opponent.
Those are ''logical rules'' valid for all languages . So the question of
''native language'' is irrelevant. Science is universal which means
independent from the language of individual scientist. BTW translation
of scientific works is much more easy than literature not to mention
lyrics.
''Straw man'' qualifications are known as ''testimonium paupertatis''.