are Eastern Europeans as tough as Mexicans & Japanese?

Does anyone else feel like the constant generalization of nations & ethnic groups in sports is kind of stupid and at this point somewhat mundane? A lot of great boxers from what people think is "Easter Europe" isn't even Eastern Europe. For instance Dmitry Bivol was born in Kyrgyzstan, Gennady Golovkin is from Kazakhstan, and a lot of Russia's best athletes in Boxing, Judo, Wrestling, Sambo, Mixed Martial Arts, Kyokushin and the list goes on are actually from the Caucus which has been a war torn region for over 100 years....Caucus regions like Balkaria, Georgia, Chechnya and Dagestan...which isn't really European even in the slightest.

We all know they are great fighters but do they have heart,and toughness as a Mexican or Japanese fighter. Ive seen bum Mexican fighters with no heart, bum Japanese with no heart, and Bum eastern Euros. So to answer your question they might be or might not be.

only with PEDs.

I bet BB King would've been a good boxer.