In using 'Caucasian', you repeat terms used and invented by "scientific racists". The word was given its ethnic association by Meiners, a polygenist and of course a raging racist, to the extent that other white people were inferior in his eyes
Meiners boasts about the superiority of Germans among Europeans, and describes non-German Europeans' color as "dirty whites", in an unfavorable comparison with Germans
This continued through the age of scientific racism with other fun pals like Blumenbach
Blumenbach would later assert that of the various Caucasian varieties, the Northern European type (encompassing the present-day United Kingdom, France and Scandinavia) represented the perfect form... Blumenbach, like Meiners, did rank his Caucasian grouping higher than other groups in terms of mental faculties or potential for achievement.
Just, like, seriously- call them white, hell, call them crackers, just don't call them caucasian unless you want to continue perpetuating the terms of the scientific racist.